liu.seSearch for publications in DiVA
Change search
Refine search result
1 - 46 of 46
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Alm Carlsson, Gudrun
    et al.
    Linköping University, Department of Medicine and Care, Radio Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Carlsson, Carl A.
    Linköping University, Department of Medicine and Care, Radio Physics. Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan
    Linköping University, Department of Medicine and Care, Radio Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Riskuppskattningar och strålskydds-rekommendationer: Vår strålningsmiljö1991Report (Other academic)
    Abstract [sv]

    Människan har i alla tider varit utsatt för joniserande strålning. Kosmiskstrålning och naturligt radioaktiva nuklider i vår omgivning och i vår kropp ger ett årligtbidrag till den absorberade dosen i hela kroppen, som i genomsnitt för människorna påjorden uppgår till 1 mGy/år (1Gy = 1 J/kg). Det finns områden på jorden där stråldosenfrån naturlig strålning är 10-100 ggr större, jfr avsnittet "Vår strålningsmiljö".

    I slutet av 1800-talet upptäckte Röntgen röntgenstrålningen och Becquerel den naturligaradioaktiviteten. Människan fick därmed för första gången tillgång till starka källor avjoniserande strålning. Dessa togs snabbt i bruk framförallt inom medicinsk röntgendiagnostikoch radioterapi. Man gjorde snart bittra erfarenheter av den joniserandestrålningens skadliga biologiska verkningar efter höga stråldoser. Fram till år 1922 hadec:a 100 radiologer dött av strålskador. Man insåg att något måste göras för att förbättraläget för personalen och år 1928 bildades ICRP (International Commission on RadiationProtection). ICRP ger ut rekommendationer för strålskydd, som ligger till grund förnationella lagar och förordningar över hela världen.

    Den förhållandevis långa erfarenhet människan har av joniserande strålning och denlätthet med vilken även små stråldoser kan mätas har gett oss stränga normer vad gällerhanteringen av producerade strålkällor. Många har därför uppfattningen att joniserandestrålning är en exklusiv miljökomponent. Så är knappast fallet. Förutom att vi alltid varitnaturligt bestrålade finns det idag anledning att förmoda att den kemiska nedsmutsningenav miljön är ett långt allvarligare hot mot vårt välbefinnande än den nuvarandeanvändningen av producerade strålkällor. En rättvis bedömning av olika miljökomponenterkan endast göras den gång alla mäts med samma mått. Arbete med dennainriktning pågår med strålskydds-verksamheten som förebild.

  • 2.
    Carlsson, C.A.
    et al.
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Alm Carlsson, Gudrun
    Linköping University, Department of Medicine and Care, Radio Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Lund, Eva
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan
    Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics. Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Matscheko, G.
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    An instrument for measuring ambient dose equivalent, H*(10)1996In: Radiation Protection Dosimetry, ISSN 0144-8420, E-ISSN 1742-3406, Vol. 67, no 1, p. 33-39Article in journal (Refereed)
    Abstract [en]

    The design and calibration of a small and simple instrument for measuring the ambient dose equivalent, H*(10), in photon fields is described. Comprising a thermoluminescence LiF dosemeter inside a 20 mm diameter PMMA sphere, it is capable of measuring the ambient dose equivalent with a nearly isotropic response. In the interval 0.1-100 mSv and for the energy range 30 keV to 1.25 MeV the energy response is within -31% and +15% relative to that of 137Cs gamma radiation (662 keV). In practical use, it is therefore sufficient to calibrate the instrument in a 137Cs gamma field using the corresponding conversion coefficient H*(10)/Kair taken from tabulations. The possibility of using the instrument to monitor the ambient dose equivalent for energies above 1.25 MeV is discussed and indicates that the range of applicability can be extended to 4.4 MeV with an energy response within -10% relative to 662 keV.

  • 3.
    Dahlén, Johan
    et al.
    Linköping University, The Tema Institute, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
    Karlsson, Stefan
    Linköping University, The Tema Institute, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
    Bäckström, Mattias
    Man-Technology-Environment Research Centre, Örebro University.
    Hagberg, Jessica
    Man-Technology-Environment Research Centre, Örebro University.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Determination of nitrate and other water quality parameters in groundwater from UV/VIS spectra employing partial least squares2000In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 40, no 1, p. 71-77Article in journal (Refereed)
    Abstract [en]

    The use of UV/Vis spectroscopy in combination with partial least squares (PLS) regression for the simultaneous prediction of nitrate and non-purgeable organic carbon (NPOC) in groundwaters was evaluated. A model of high quality was obtained using first order derivative spectra in the range 200–300 nm. Inclusion of non-UV-absorbing constituents in the modeling procedure, i.e., chloride, sulfate, fluoride, total carbon (TC), inorganic carbon (IC), alkalinity, pH and conductivity was also evaluated. This model seemed to be useful for prediction of chloride, TC, IC, alkalinity and conductivity, while its ability to predict sulfate, fluoride and pH was poor. In conclusion, application of PLS regression, which requires neither filtration of samples nor addition of chemicals, is a promising alternative for fast interpretation of geochemical patterns of groundwater quality.

  • 4.
    Fransson, Sven Göran
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Sandborg, Michael
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Petterson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Stråldoser till patienter och personal vid kranskärlsröntgen och intervention vua radialis resptektive femoralispunktion.2003In: Svensk förening för medicinsk radiologi förhandlingar 2003,2003, 2003, p. 25-26Conference paper (Refereed)
  • 5.
    Fransson, Sven Göran
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiology. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Sandborg, Michael
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Evaluation of patient and staff absorbed doses during coronary angiography and intervention by femoral and radial artery access.2002In: European IRPA Congress, Florence, Italy, October 2002,2002, 2002, p. 107-107Conference paper (Refereed)
  • 6.
    Greis, Christina
    et al.
    Man-Technology-Environment Research Centre, Örebro University.
    Karlsson, Stefan
    Man-Technology-Environment Research Centre, Örebro University.
    Duker, Anders
    Man-Technology-Environment Research Centre, Örebro University.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    Allard, Bert
    Man-Technology-Environment Research Centre, Örebro University.
    Determination of plutonium in environmental samples with quadrupole ICP-MS.2008In: Journal of Radioanalytical and Nuclear Chemistry, ISSN 0236-5731, E-ISSN 1588-2780, Vol. 275, no 1, p. 55-70Article in journal (Refereed)
    Abstract [en]

    A method for rapid determination of plutonium isotopes in environmental samples with ultrasonic nebulisation and quadrupole ICP-MS detection was established. Techniques for sample dissolution, pre-concentration and chemical separation were evaluated and the optimal scheme outlined. Comparisons with α-spectrometry and high resolution ICP-MS confirmed the suitability of the method when applied to different environmental matrices within the global fallout concentration range in the northern hemisphere as well as more contaminated sites. Operational detection limits were 0.5–1.5 fg/l for fresh waters and 0.03–0.1 ng/kg for lake sediments and saline marsh sediments.

  • 7.
    Gårdestig, Magnus
    et al.
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Halse, Tore
    Pettersson, Håkan BL
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    RadiaX – Radiac Simulation for First Responders2010In: Proceedings of Third European IRPA Congress 2010 June 14−16, Helsinki, Finland, 2010Conference paper (Other academic)
    Abstract [en]

    As a complement to the training of first responders in their preparedness for accidents and incidents involving radiation, a radiac simulation, called RadiaX, was developed.  RadiaX has a threefold purpose; to teach (i) the handling of specific instruments, (ii) the proper procedures in missions and (iii) basic principles in radiation physics and radiation protection. The simulation is developed as a modification of Half-Life 2, a famous computer game.

  • 8.
    Gårdestig, Magnus
    et al.
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Helmrot, Ebba
    Linköping University, Department of Medicine and Care, Medical Radiology. Linköping University, Faculty of Health Sciences. Jönköping County Hospital.
    Sandborg, Michael
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Nilsson Althén, Jonas
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Bahar Gogani, Jalil
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Alm Carlsson, Gudrun
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan BL
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Estimations of effective dose in X-ray examinations derived from information stored in PACS2005In: Radiological Protection in Transition: Proceedings of the XIV Regular Meeting of the Nordic Society for Radiation Protection, NSFS, Stockholm: Statens Strålskyddsinstitut , 2005, p. 175-178Conference paper (Other academic)
    Abstract [en]

    Information about each X-ray examination, in a modern digitized X-ray department is generated and stored in a PACS. Appropriate conversion factors, e.g. E/DAP, can be applied to separate projections and summed to the total effective dose for each examination. The objectives of the work were (i) to investigate the accuracy and precision in the calculated effective dose (ii) to identify data for registration of (1) patient dose, (2) exposure data, and (3) patient information (iii) to make it possible to derive dose statistics on patient level for documentation of diagnostic standard doses, optimizations, constancy checks, and future epidemiological studies. The effective doses were calculated using Monte Carlo based computer programs or by using tabulations. Conversion factors were calculated for different levels of information and the individual effective dose was compared to the most precise estimation. The results suggest that the accuracy in the estimations of effective dose increases by added information about the patient (gender, size) and how the examination was performed.

  • 9.
    Gårdestig, Magnus
    et al.
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Kock, Peder
    Lunds universitet.
    Pettersson, Håkan BL
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    RadiaCopter – UAS Gamma spectrometry for detection and identification of radioactive sources2011In: XVI Conference of the NSFS, Reykjavik Iceland, 22-25 August 2011: Current Challenges in Radiation Protection Conference Proceedings, 2011Conference paper (Other academic)
    Abstract [en]

    With an unmanned helicopter (UAS), known as drones, equipped with a gamma spectrometer, one can achieve both a high spatial resolution and good range, and be able to approach a radioactive source closely. Linköping University, Sweden, is proposing a microdrone system that will fill a gap between man-portable measurement systems and full-sized airborne systems, complementing the car-driven measurement systems. The system may play a unique role in many of our contingency scenarios in terms of accessibility, versatility, efficiency, and is advantageous from the viewpoint of radiation protection as it can be controlled at a safe distance.

  • 10.
    Gårdestig, Magnus
    et al.
    Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL. Linköping University, Department of Medicine and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan BL
    Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL. Linköping University, Department of Medicine and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Approved Personal Dosimetry for Medical Personnel using Direct Ion Storage Dosimeters2009In: IFMBE Proceedings vol. 25/III / [ed] Dössel, Schlegel, Heidelberg: Springer , 2009, p. 352-354Conference paper (Other academic)
    Abstract [en]

    Dosimeters based on the Direct Ion Storage technology is used as the first approved electronic personal dosimeter in Sweden at the County Councils in Östergötland and Kalmar. TL dosimeters are replaced by DIS-1 dosimeters for all category A personnel at six hospitals with totally 300 dosimeter holders. The advantages are longer issue periods and instant read outs, appreciated by both the service and the holders

  • 11.
    Gårdestig, Magnus
    et al.
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan BL
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    RadiaCopter - UAS Gamma spectrometry for detection and identification of radioactive sources2012In: IRPA13 the 13th International Congress of the International Radiation Protection Association, 2012, p. P09-22Conference paper (Other academic)
  • 12.
    Gårdestig, Magnus
    et al.
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Örtenberg, Alexander
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan BL
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    RadiaDroid – Simulated radiation detection in smartphones2011In: XVI Conference of the NSFS, Reykjavik Iceland, 22-25 August 2011: Current Challenges in Radiation Protection Conference Proceedings, 2011Conference paper (Other academic)
    Abstract [en]

    RadiaDroid is an Android application that simulates the portable radiation detector Intensimeter 28 civ. and uses virtual radioactive sources, defined by GPS coordinates, radionuclide and activity. The trainees load a scenario and search the exercise area for radioactivity. The locations of sources and safety perimeters are reported. Creation of scenarios is possible in the application, but is facilitated in a PC tool that also presents the reports and the dose to the trainee.

  • 13.
    Helmrot, Ebba
    et al.
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    Pettersson, Håkan
    Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics. Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Sandborg, Michael
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Center for Medical Image Science and Visualization (CMIV). Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics. Linköping University, Faculty of Health Sciences.
    Nilsson Althen, Jonas
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    Estimation of the dose to the unborn child at diagnostic X-ray examinations based on data registrerad in RIS/PACS2007In: European Radiology, ISSN 0938-7994, E-ISSN 1432-1084, Vol. 17, no 1, p. 205-209Article in journal (Refereed)
    Abstract [en]

    The aim of this work was to determine mean absorbed doses to the unborn child in common conventional X-ray and computed tomography (CT) examinations and to find an approach for estimating foetal dose based on data registered in the Radiological Information System/Picture Archive and Communication System (RIS/PACS). The kerma-area product (KAP) and CT dose index (CTDIvol) in common examinations were registered using a human-shaped female dosimetry phantom. Foetal doses, Df, were measured using thermoluminescent dosimeters placed inside the phantom and compared with calculated values. Measured foetal doses were given in relation to the KAP and the CTDIvol values, respectively. Conversion factor Df/KAP varies between 0.01 and 3.8 mGy/Gycm2, depending on primary beam position, foetus age and beam quality (tube voltage and filtration). Conversion factors Df/CTDIvol are in the range 0.02 – 1.2 mGy/mGy, in which the foetus is outside or within the primary beam. We conclude that dose conversion factors based on KAP or CTDIvol values automatically generated by the RIS/PACS system can be used for rapid estimations of foetal dose for common examination techniques.

  • 14. Hirose, K
    et al.
    Amano, H
    Baxter, M S
    Chaykovskaya, E
    Chumichev, V B
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Anthropogenic radionuclides in seawater in the EastSea/Japan: results of the first-stage Japaneese-Korean-Russian expedition.1999In: Journal of Environmental Radioactivity, ISSN 0265-931X, E-ISSN 1879-1700, Vol. 43Article in journal (Refereed)
  • 15. Ikeuchi, Y
    et al.
    Aoyama, H
    Berzhonov, M
    Chaykovskaya, VI
    Chumichev, E
    Chung, VB
    Gastaud, CS
    Hirose, J
    Hong, K
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Anthropogenic radionuclides in seawater of the Par Eastern Seas.1999In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 237, p. 203-212Article in journal (Refereed)
  • 16.
    Israelsson, Axel
    et al.
    Linköping University, Department of Medical and Health Sciences, Division of Radiological Sciences. Linköping University, Faculty of Health Sciences.
    Eriksson, M.
    Swedish Radiation Safety Authority, Stockholm, Sweden.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Division of Radiological Sciences. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    On the Distribution of Uranium in Hair: Non-Destructive Analysis Using SR-μXRF2015In: Spectrochimica Acta Part B - Atomic Spectroscopy, ISSN 0584-8547, E-ISSN 1873-3565, Vol. 108, p. 28-34Article in journal (Refereed)
    Abstract [en]

    In the present study the distribution of uranium in single human hair shafts has been evaluated using two synchrotron radiation (SR) based micro X-ray fluorescence techniques; SR μ-XRF and confocal SR μ-XRF. The hair shafts originated from persons that have been exposed to elevated uranium concentrations. Two different groups have been studied, i) workers at a nuclear fuel fabrication factory, exposed mainly by inhalation and ii) owners of drilled bedrock wells exposed by ingestion of water. The measurements were carried out on the FLUO beamline at the synchrotron radiation facility ANKA, Karlsruhe. The experiment was optimized to detect U with a beam size of 6.8 μm × 3 μm beam focus allowing detection down to ppb levels of U in 10 s (SR μ-XRF setup) and 70 s (SR confocal μ-XRF setup) measurements. It was found that the uranium was present in a 10–15 μm peripheral layer of the hair shafts for both groups studied. Furthermore, potential external hair contamination was studied by scanning of unwashed hair shafts from the workers. Sites of very high uranium signal were identified as particles containing uranium. Such particles, were also seen in complementary analyses using variable pressure electron microscope coupled with energy dispersive X-ray analyzer (ESEM–EDX). However, the particles were not visible in washed hair shafts.

    These findings can further increase the understanding of uranium excretion in hair and its potential use as a biomonitor.

  • 17.
    Israelsson, Axel
    et al.
    Linköping University, Department of Medical and Health Sciences, Division of Radiological Sciences. Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Division of Radiological Sciences. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    Measurements of 234U and 238U in Hair, Urine, and Drinking Water Among Drilled Bedrock Well Water Users for the Evaluation of Hair as a Biomonitor of Uranium Intake2014In: Health Physics, ISSN 0017-9078, E-ISSN 1538-5159, Vol. 107, no 2, p. 143-149Article in journal (Refereed)
    Abstract [en]

    Hair is evaluated and compared with urine as a biomonitor for human intake of uranium. Concentrations of U and U and the activity ratio between them are measured in the hair, urine, and drinking water of 24 drilled bedrock well water users in Östergötland, Sweden. The samples are measured with α-spectrometry after radiochemical preparation using liquid-liquid separation with tributylphosphate. The results show that there is a stronger correlation between the uranium concentrations in the drinking water of each subject and the hair of the subject (r = 0.50) than with the urine (r = 0.21). There is also a stronger correlation between the activity ratios of water and hair (r = 0.91) than between water and urine (r = 0.56). These results imply that hair may serve as a robust indicator of chronic uranium intake. One obvious advantage over sampling urine is that hair samples reflect a much longer excretion period: weeks compared to days. The absorbed fraction of uranium, the f value, is calculated as the ratio between the excreted amount of uranium in urine and hair per day and the daily drinking water intake of uranium. The f values stretch from 0.002 to 0.10 with a median of 0.023.

  • 18.
    Israelsson, Axel
    et al.
    Linköping University, Department of Medical and Health Sciences, Division of Radiological Sciences. Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Division of Radiological Sciences. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    Using Hair as a Bioindicator for Inhalation of Uranium: A Study on Nuclear Fuel Fabrication Workers2014Manuscript (preprint) (Other academic)
    Abstract [en]

    Scalp hair is evaluated and compared with urine as a potential biomonitor following inhalation intake of uranium. The samples were collected among eight workers at a nuclear fuel fabrication factory and the sample concentrations of 234U and 238U were analyzed by α-spectrometry after radiochemical preparation using a TBP-based liquidliquid separation method. Personal air samplers (PAS) filters were also analyzed for determination of inhaled uranium activity.

    The results show that there is a large day-to-day variation (7-70 Bq d-1) of the inhaled 234U activity over a 6 week period. A large variation is also seen for the 234U activity concentration among 12 urine samples collected over a 12 week period; (2-50 mBq kg-1). Four hair samples from the same subject and period showed less variation (100-240 mBq g-1) as they reflect the average excretion over a longer period than the periodic urine samples.

    The total inhalation intake and excretion in urine and hair was obtained for two study subjects over a 6 week period. The uranium inhalation to urine and hair factors finh,u and finh,h were 0.0014 and 0.0002 respectively, given by calculations based on the measured PAS, urine and hair data. It has been demonstrated that scalp hair could be a valuable complement to urine as biomonitor of uranium intake.

  • 19.
    Karlsson, Henrik
    et al.
    Med radiofysik IMV.
    Angland, Erik
    Linköping University, Department of Medicine and Care.
    Davidsson, Anette
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Clinical Physiology. Östergötlands Läns Landsting, Heart Centre, Department of Clinical Physiology.
    Gustafsson, Agneta
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Measurements of airborne 99mTc to technologists during technegas ventilation studies2006In: EANM,2006, 2006Conference paper (Other academic)
  • 20.
    Karlsson, Mattias P
    et al.
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Halse, Tore
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Carlsson, Marie
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    Gårdestig, Magnus
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences.
    Stark, Karolina
    Stockholms universitet, Systems Ecology.
    Pettersson, Håkan BL
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    External radiation doses to biota: Monte Carlo dose model calculations2011In: XVI Conference of the NSFS, Reykjavik Iceland, 22-25 August 2011: Current Challenges in Radiation Protection Conference Proceedings, 2011Conference paper (Other academic)
    Abstract [en]

    Realistic and reliable dose models are required to estimate the radiological risks to non-human biota, in regions contaminated by radioactivity. To facilitate detailed dose calculations, a graphical user interface has been developed to the Monte Carlo N-Particle Transport code (MCNP): the TADPOLE editor (Terrestrial and Aquatic Dose assessment Program for Organisms in their Local Environment). The editor is intended for site and biota specific analyses of absorbed dose from external γ- and β- radiation.

    An experiment was performed in controlled, laboratory conditions as a first validation of the calculation models assigned by the editor. Measurements with TL-dosimeters yielded lower doses than was calculated by MCNP5 through the editor.

  • 21. Kim, CK
    et al.
    Kim, CS
    Chang, BU
    Choi, SW
    Chung, CS
    Hong, GH
    Hirose, K
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Pu-240/Pu-239 atom ratios in the bottom sediments of the NW Pacific Ocean2003In: Journal of Radioanalytical and Nuclear Chemistry, ISSN 0236-5731, E-ISSN 1588-2780, Vol. 258, no 2, p. 265-268Article in journal (Refereed)
    Abstract [en]

    Pu239+240 concentrations and Pu-240/Pu-239 atom ratios in bottom sediments of the Yellow Sea, Korea Strait, East Sea (Sea of Japan), Sea of Okhotsk, and Northwest Pacific Ocean were determined. In coastal sediments near the Korean Peninsula, Pu239+240 concentrations varied from 0.02 to 1.72 Bq.kg(-1), and their Pu-240 /Pu-239 atom ratios from 0.15 to 0.24, with an average of 0.20+/-0.03. Pu-240/Pu-239 atom ratios of bottom sediments in the deep NW Pacific Ocean and its marginal seas(East,Okhotsk seas) were in the range of 0.15-0.23. A little elevated Pu-240/Pu-239 atom ratios in the bottom layer sediment may be due to Pu released into the environment during the pre-moratorium period, having high Pu-240 /Pu-239 atom ratios and low Pu-238/Pu239+240 activity ratios.

  • 22. Lee, Sang-Han
    et al.
    Gastaud, Janine
    Povinec, Pavel
    Hong, Gi-Hoon
    et.al, et.al
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Distribution of plutonium and americium in the marginal seas of the nothwest pacific ocean.2003In: Deep-sea research. Part II, Topical studies in oceanography, ISSN 0967-0645, E-ISSN 1879-0100, Vol. 50, p. 2727-2750Article in journal (Refereed)
    Abstract [en]

    Plutonium isotopes and 241Am were studied in seawater and sediment from the East China Sea, the Yellow Sea, the East Sea/Sea of Japan, the Sea of Okhotsk, and the northwest Pacific Ocean, collected between 1993 and 1996 with the aim to contribute to better understanding the behaviour of plutonium and americium in the marine environment. 239,240Pu concentrations in surface water varied from 2.3 to 13 µBq l-1 in the East China Sea and from 3.5 to 9.4 µBq l-1 in the East Sea. The 239,240Pu vertical profiles in water showed a broad subsurface maximum between 500 and 1000 m with a range of 30-40 µBq l-1, and gradually decreased from 1000 m depth down to the seafloor. 241Am concentrations in surface water showed values from 1.1 to 2.2 µBq l -1 in the East Sea, from 1.0 to 3.1 µBq l-1 in the Sea of Okhotsk, and from 0.68 to 12.0 µBq l-1 in the northwest Pacific Ocean. The activity ratios of 241Am/239,240Pu in seawater showed values similar to the global fallout ratio, which suggests that the source of these radionuclides in the northwest Pacific Ocean is global fallout. However, the 241Am/239,240Pu activity ratios in sediment were found to be much higher (1.0-1.9) than the global fallout ratio (0.37), confirming that 241Am is scavenged from the water column more rapidly than 239,240Pu. The 239,240Pu inventories in the water column of the East Sea were from 0.98 to 93 Bq m-2 depending on water depth and sedimentation rates. The 241Am inventory in the water column east of Kamchatka was 6.3 ± 1.0 Bq m -2 and the sediment inventory in the Sea of Okhotsk was 16 ± 2 Bq m-2. 239,240Pu concentrations in sinking particles in the southwest Japan Basin were from 3.7 to 5.2 Bq kg-1 (dry weight) with fluxes of 0.19-4.50 mBq m-2 d-1 and at the Ulleung Basin from 2.4 to 3.7 Bq kg-1 (dry weight) with fluxes of 0.77-1.10 mBq m-2 d-1. The mean residence time of 239,240Pu in the water column of the East Sea derived from sediment trap data was 140 ± 20 years, 2-3 times less than in the Atlantic and Pacific oceans.

  • 23.
    Olsson, Anna
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics.
    Davidsson, Anette
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Clinical Physiology. Östergötlands Läns Landsting, Heart Centre, Department of Clinical Physiology.
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Gustafsson, Agneta
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Finger doses from handling radioative isotopes at a Nuclear Medicine department2006In: EANM,2006, 2006Conference paper (Other academic)
  • 24.
    Pettersson, Håkan
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Amano, H
    Auyama, M
    Berzhonov, V I
    Chaykovskaya, E
    Chumichev, V B
    Chung, C S
    Anthropogenic radionuclides in sediments in the NW Pacific Ocean and its marginal seas.1999In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 237, p. 213-238Article in journal (Refereed)
  • 25.
    Pettersson, Håkan
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Fälth-Magnusson, Karin
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Clinical and Experimental Medicine, Pediatrics . Östergötlands Läns Landsting, Centre of Paediatrics and Gynecology and Obstetrics, Department of Paediatrics in Linköping.
    Persliden, Jan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Scott, M.
    Department of Statistics, University of Glasgow, Glasgow G12 8QW, United Kingdom.
    Radiation risk and cost-benefit analysis of a paediatric radiology procedure: Results from a national study2005In: British Journal of Radiology, ISSN 0007-1285, E-ISSN 1748-880X, Vol. 78, no 925, p. 34-38Article in journal (Refereed)
    Abstract [en]

    A national study was performed to investigate radiation doses and associated risks to patients during X-ray fluoroscopy-guided small intestinal biopsies in the investigation of coeliac disease. Thermoluminescent dosemeters (TLD) and questionnaires were sent to 42 of the 43 paediatric departments in Sweden performing these biopsies. During the study period (2 × 3 weeks) 257 biopsies were recorded, representing about 10% of annually performed paediatric investigations. The results show that the absorbed dose during biopsy ranged from 0.04 mGy to 23.8 mGy (mean 1.87 mGy). The fluoroscopy time ranged from 2 s to 663 s (mean 60 s). The collective dose from the procedure amounts to 4.7 manSv year-1. Thus, the annual excess cancer mortality, including severe hereditary effects, can be estimated at 0.6-0.7 cases per year. However, significant dose saving can be obtained by proper choice of sedation and biopsy equipment. © 2005 The British Institute of Radiology.

  • 26.
    Pettersson, Håkan
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Helmrot, Ebba
    Sandborg, Michael
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Nilsson, Jonas
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Olsson, Sara
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Persliden, Jan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics.
    Cederlund, Torsten
    Prenatal radiation exposures at diagnostic procedures: mathods to identify exposed pregnant patients2002In: European IRPA Congress 2002, FlorensISBN 88-88648-09-7,2002, 2002Conference paper (Refereed)
  • 27.
    Pettersson, Håkan
    et al.
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics. Linköping University, Faculty of Health Sciences.
    Povinec, P. P.
    Osvath, I.
    Baxter, M. S.
    Ballestra, S.
    Carroll, J.
    Gastaud, J.
    Harms, I.
    Summary of IAEA-MEL's investigation of Kara Sea radioactivity and radiological assessment1997In: Marine Pollution Bulletin, ISSN 0025-326X, E-ISSN 1879-3363, Vol. 35, no 7-12, p. 235-241Article in journal (Refereed)
    Abstract [en]

    IAEA-MEL participated in five expeditions to the Kara Sea with the aim of assessing the radiological consequences of dumped radioactive wastes in the Novaya Zemlya Bays and Trough. The programme included sampling, in-situ underwater investigations, laboratory analyses of water, sediment and biota samples, the development of a marine radioactivity database, modelling and radiological assessment, the organization of intercomparison exercises and the evaluation of distribution coefficients. Radiometric investigations have shown that no radiologically significant environmental contamination has occurred. Leakages which have led to locally increased levels of radionuclides in sediment have only been observed in Stepovoy and Abrosimov Bays. Computer modelling results suggest that only radiological effects on local and regional scales may be of importance. The global radiological impact of the disposals in the Arctic Seas will be negligible.

  • 28.
    Pham, M. K.
    et al.
    International Atomic Energy Agency (IAEA), Monaco.
    Benmansour, M.
    Centre National Energie Science and Technical Nucl, Rabat, Morocco.
    Carvalho, F. P.
    Institute Super Tecn, Sacavém, Portugal.
    Chamizo, E.
    University of Seville, Spain.
    Degering, D.
    Verein für Kernverfahrenstechnik und Analytik RossendorfeV, Dresden, Germany.
    Engeler, C.
    Rijkswaterstaat Centre for Water Management, Lelystad, Netherlands.
    Gasco, C.
    CIEMAT RAyVR, Madrid, Spain.
    Gwynn, J. P.
    Norwegian Radiation Protection Authority, The Fram Centre, Tromsø, Norway.
    Harms, A. V.
    International Atomic Energy Agency (IAEA), Monaco.
    Hrnecek, E.
    European Commission-Joint Research Centre, Karlsruhe, Germany.
    Ibanez, F. L.
    Escuela Tecn Super Ingn, Bilbao, Spain.
    Ilchmann, C.
    Senatsverwaltung für Stadtentwicklung und Umwelt, Berlin, Germany.
    Ikaheimonen, T.
    STUK - Radiation and Nuclear Safety Authority, Helsinki, Finland.
    Kanisch, G.
    Thunen Institute Fisheries Ecology, Hamburg, Germany.
    Kloster, M.
    Senatsverwaltung für Stadtentwicklung und Umwelt, Berlin, Germany.
    Llaurado, M.
    University of Barcelona, Spain.
    Mauring, A.
    Norwegian Radiation Protection Authority, Østerås, Norway.
    Møller, B.
    Norwegian Radiation Protection Authority, Svanvik, Norway.
    Morimoto, T.
    Japan Chemical Analysis Center, Chiba, Japan.
    Nielsen, S. P.
    Technical University of Denmark, Roskilde, Denmark.
    Nies, H.
    International Atomic Energy Agency (IAEA), Monaco.
    Norrlid, L. D. R.
    Emergency Preparedness and Response, Swedish Radiation Safety Authority, Stockholm, Sweden.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Division of Radiological Sciences. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    Povinec, P. P.
    Cornenius University, Bratislava, Slovakia.
    Rieth, U.
    Institut für Hygiene und Umwelt, Hamburg, Germany.
    Samuelsson, C.
    Lund University, Sweden.
    Schikowski, J.
    Isotopenlabor, Göttingen, Germany.
    Silobritiene, B. V.
    Environmental Protection Agency, Vilnius, Lithuania.
    Smedley, P. A.
    CEFAS, Suffolk, UK.
    Suplinska, M.
    Central Laboratory for Radiological Protection, Warsaw, Poland.
    Vartti, V. -P.
    STUK - Radiation and Nuclear Safety Authority, Helsinki, Finland.
    Vasileva, E.
    International Atomic Energy Agency (IAEA), Monaco.
    Wong, J.
    Radiological Protection Institute of Ireland, Dublin, Ireland.
    Zalewska, T.
    National Research Institute, Gdynia, Poland.
    Zhou, W.
    Institute of Earth Environment, Chinese Academic Science, China.
    Certified Reference Material IAEA-446 for radionuclides in Baltic Sea seaweed2014In: Applied Radiation and Isotopes, ISSN 0969-8043, E-ISSN 1872-9800, Vol. 87, p. 468-474Article in journal (Refereed)
    Abstract [en]

    A Certified Reference Material (CRM) for radionuclides in seaweed (Fucus vesiculosus) from the Baltic Sea (IAEA-446) is described and the results of the certification process are presented. The K-40, Cs-132, U-234 and Pu239+240 radionuclides were certified for this material, and information values for 12 other radionuclides (Sr-90, Tc-99, Pb-210 (Po-210), Ra-226, Ra-228, Th-228, Th-230, Th-232, U-235, U-238, Pu-239 and Pu-240) are presented. The CRM can be used for Quality Assurance/Quality Control of analysis of radionuclides in seaweed and other biota samples, as well as for development and validation of analytical methods, and for training purposes.

  • 29.
    Pham, M K
    et al.
    IAEA.
    Betti, M
    IAEA.
    Povinec, P P
    Comenius University.
    Benmansour, M
    Centre Natl Energie Science and Tech Nucl, Rabat.
    Buenger, V
    Senatsverwaltung Gesundheit Umwelt and Verbraucher.
    Drefvelin, J
    Norwegian Radiation Protection Authority.
    Engeler, C
    WGMLA Radiochem.
    Flemal, J M
    Science Institute for Public Health.
    Gasco, C
    Centre Invest Energet MedioAmbient and Technology.
    Guillevic, J
    Institute Radioprotect and Surette Nucl.
    Gurriaran, R
    IRSN DEI STEME LMRE.
    Groening, M
    IAEA.
    Happel, J D
    University of Miami.
    Herrmann, J
    Bundesamt Seeschifffahrt and Hydrog.
    Klemola, S
    Radiat and Nucl Safety Author.
    Kloster, M
    Senatsverwaltung Gesundheit Umwelt and Verbraucher.
    Kanisch, G
    Johann Heinrich von Thunen Institute.
    Leonard, K
    Centre Environm Fisheries and Aquaculture Science.
    Long, S
    Radiol Protect Institute Ireland.
    Nielsen, S
    Riso Natl Lab.
    Oh, J-S
    Natl Oceanog Centre Southampton.
    Rieth, P U
    Johann Heinrich von Thunen Institute.
    Oestergren, I
    Swedish Radiat Safety Author.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Pinhao, N
    Institute Tecnol and Nucl, Sacavem, Portugal .
    Pujol, L
    Centre Estudios Expt and Obras Publ.
    Sato, K
    Japan Chemistry Anal Centre.
    Schikowski, J
    University of Gottingen.
    Varga, Z
    Hungarian Academy of Science.
    P Vartti, V
    Radiat and Nucl Safety Author.
    Zheng, J
    Natl Institute Radiol Science.
    A certified reference material for radionuclides in the water sample from Irish Sea (IAEA-443)2011In: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, ISSN 0236-5731, Vol. 288, no 2, p. 603-611Article in journal (Refereed)
    Abstract [en]

    A new certified reference material (CRM) for radionuclides in sea water from the Irish sea (IAEA-443) is described and the results of the certification process are presented. Ten radionuclides (H-3, K-40, Sr-90, Cs-137, U-234, U-235, U-238, Pu-238, Pu239+240 and Am-241) have been certified, and information values on massic activities with 95% confidence intervals are given for four radionuclides (Th-230, Th-232, Pu-239 and Pu-240). Results for less frequently reported radionuclides (Tc-99, Th-228, Np-237 and Pu-241) are also reported. The CRM can be used for quality assurance/quality control of the analysis of radionuclides in water samples, for the development and validation of analytical methods and for training purposes. The material is available in 5 L units from IAEA (http://nucleus.iaea.org/rpst/index.htm).

  • 30.
    Pham, M.K.
    et al.
    International Atomic Energy Agency (IAEA), Marine Environment Laboratory (MEL), Monaco.
    Sanchez-Cabeza, J.A.
    International Atomic Energy Agency (IAEA), Marine Environment Laboratory (MEL), Monaco.
    Povinec, Pavel
    International Atomic Energy Agency (IAEA), Marine Environment Laboratory (MEL), Monaco.
    Arnold, D.
    Physikalisch-Technische Bundesanstalt, Braunschweig, Germany.
    Benmansour, M.
    Centre National de l’Energie, des Sciences et des Techniques Nucle´aires (CNESTEN), Rabat, Morocco.
    Bojanowski, R.
    Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland.
    Carvalho, F.
    Instituto Tecnolo´gico e Nuclear, Departamento de Protecc-a˜o Radiolo´gica e Seguranc-a Nuclear, Sacave´m, Portugal.
    Kim, C.K.
    Department of Radiological Environmental Assessment, Korea Institute of Nuclear Safety, Yo-song, Taejon, Korea.
    Esposito, M.
    Laboratorio di Ingegneria Nucleare, Universita` di Bologna, Bologna, Italy.
    Gastaud, J.
    International Atomic Energy Agency (IAEA), Marine Environment Laboratory (MEL), Monaco.
    Gasco, C.L.
    CIEMAT-DIAE, Radioecologia del Medio Acuatico, Madrid, Spain.
    Ham, G.J.
    National Radiological Protection Board, Chilton, Didcot, Oxon, UK.
    Hegde, A.G.
    Environmental Survey Laboratory, Bhabha Atomic Research Center, Tarapur Atomic Power Station, Maharashtra, India.
    Holm, E
    Department of Medical Radiation Physics, Lund University Hospital, Lund, Sweden.
    Jaskierowicz, D
    Lab. d’Analyses de Surveillance et d’Expertise de la Marine, Base Navale de Cherbourg, Cherbourg, France.
    Kanisch, G.
    Federal Research Centre for Fisheries, Institute of Fisheries Ecology, Hamburg, Germany.
    Llaurado, M.
    Lab. de Radiologia Ambiental, Dept. de Quimica Analitica, Facultat de Quimica, Universitat de Barcelona, Spain.
    La Rosa, J.
    International Atomic Energy Agency (IAEA), Marine Environment Laboratory (MEL), Monaco.
    Lee, S.H.
    International Atomic Energy Agency (IAEA), Marine Environment Laboratory (MEL), Monaco.
    Liong We Kwong, L
    International Atomic Energy Agency (IAEA), Marine Environment Laboratory (MEL), Monaco.
    Le Petit, G
    Commissariat a` l’Energie Atomique, DASE/SRCE, Bruye`res-le-Chaˆtel, France.
    Maruo, Y.
    Health and Safety Division, JNC Tokai works, Tokai-mura, Naka-gun, Ibaraki, Japan.
    Nielsen, S.P.
    Risoe National Laboratory, Roskilde, Denmark.
    Oh, J.S.
    Geosciences Advisory Unit, National Oceanography Centre, Southampton, UK.
    Oregioni, B
    International Atomic Energy Agency (IAEA), Marine Environment Laboratory (MEL), Monaco.
    Palomares, J
    CIEMAT, Instituto de Medio Ambiente, Radioecologia del Medio Acuatico, Madrid, Spain.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    Rulik, P.
    National Radiation Protection Institute, Prague, Czech Republic.
    Ryan, T. P.
    Radiological Protection Institute of Ireland, Dublin, Ireland.
    Sato, K.
    Japan Chemical Analysis Center, Inage-Ku, Chiba-Shi, Chiba, Japan.
    Schikowski, J.
    Physikalische Chemie, Isotopenlabor, Göttingen, Germany.
    Skwarzec, B
    Faculty of Chemistry, Chair of Analytical Chemistry, Radiochemical Laboratory, Gdansk, Poland.
    Smedley, P.A.
    CEFAS, Lowestoft Laboratory, Lowestoft, Suffolk, UK.
    Tarja´n, S.
    National Food Investigation Institute, Budapest , Hungary.
    Vajda, N
    Institute of Nuclear Techniques, Budapest University of Technology and Economics, Budapest, Hungary.
    Wyse, E
    International Atomic Energy Agency (IAEA), Marine Environment Laboratory (MEL), Monaco.
    Certified reference material for radionuclides in fish flesh sample IAEA-414 (mixed fish from the Irish Sea and North Sea)2006In: Applied Radiation and Isotopes, ISSN 0969-8043, E-ISSN 1872-9800, Vol. 64, p. 1253-1259Article in journal (Refereed)
    Abstract [en]

    A certified reference material (CRM) for radionuclides in fish sample IAEA-414 (mixed fish from the Irish Sea and North Seas) isdescribed and the results of the certification process are presented. Nine radionuclides (40K, 137Cs, 232Th, 234U, 235U, 238U, 238Pu,239+240Pu and 241Am) were certified for this material. Information on massic activities with 95% confidence intervals is given for six otherradionuclides (90Sr, 210Pb(210Po), 226Ra, 239Pu, 240Pu 241Pu). Less frequently reported radionuclides (99Tc, 129I, 228Th, 230Th and 237Np)and information on some activity and mass ratios are also included. The CRM can be used for quality assurance/quality control of theanalysis of radionuclides in fish sample, for the development and validation of analytical methods and for training purposes. Thematerial is available from IAEA, Vienna, in 100 g units.r 2006 Elsevier Ltd. All rights reserved.

  • 31. Povinec, P
    et al.
    Woodhead, D
    Blowers, D
    Bonfield, R
    Cooper, R
    Chen, M
    Dahlgaard, Q
    Dovleete, H
    Fox, C
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Marine radioactivity assessment of Mururoa and Fangataufa atolls.1999In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 237, p. 249-267Article in journal (Refereed)
  • 32. Povinec, Pavel
    et al.
    Livingston, Hugh
    Shima, Shigeki
    et.al, et.al
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    IAEA' 97 expedition to the NW pacific ocean - results of oceanographic and radionuclide investigations of the water column.2003In: Deep-sea research. Part II, Topical studies in oceanography, ISSN 0967-0645, E-ISSN 1879-0100, Vol. 50, p. 2607-2637Article in journal (Refereed)
  • 33.
    Povinec, Pavel
    et al.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    Pham, M.K.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    Sanchez-Cabeza, J. A.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    Barci-Funel, G.
    Universite Nice-Sophia Antipolis, Laboratoire de Radiochimie et de RadioEcologie, Nice, France.
    Bojanowski, R.
    Institute of Oceanography, Sopot, Poland.
    Boshkova, T.
    Sofia University, Faculty of Physics, Sofia, Bulgaria.
    Burnett, W. C.
    Florida State University, Department of Oceanography, Tallahassee, USA.
    Carvalho, F.
    Instituto Tecnológico e Nuclear, Sacavém, Portugal.
    Chapeyron, B.
    Crii-RAD, Valence, France.
    Cunha, I. L.
    IPEN-CNEN, Sao Paulo, Brazil.
    Dahlgaard, H.
    Risoe National Laboratory, Roskilde, Denmark.
    Galabov, N.
    National Institute of Meteorology and Hydrology, Pleven, Bulgaria.
    Fifield, L. K.
    Australian National University, Department of Nuclear Physics, Canberra, Australia.
    Gastaud, J.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    Geering, J.-J.
    Institut de Radiophysique Appliquée, Lausanne, Switzerland.
    Gomez, I. F.
    Environmental Radiation Protection Department, Ciudad Habana, Cuba.
    Green, N.
    National Radiation Protection Board, Chilton, Oxon, UK.
    Hamilton, T.
    Lawrence Livermore National Laboratory, Livermore, CA, USA.
    Ibanez, F. L.
    Universidad del Pais Vasco, Dept. de Ingeniera Nuclear y Mecanica de Fluidos, Bilbao, Spain.
    Ibn Majah, M.
    CNESTEN, Agdal, Rabat, Morocco.
    John, M.
    British NuclearFuels, Chemical and Metallurgical Service Department., Lancashire, UK.
    Kanisch, G.
    Federal Research Centre for Fisheries, Institute of Fisheries Ecology, Hamburg, Germany.
    Kenna, T. C.
    Woods Hole Oceanographic Institution, Woods Hole, MA, USA.
    Kloster, M.
    Senatsverwaltung für Stadtentwicklung und Umweltshutz, Berlin, Germany.
    Korun, M.
    Nuclear Intitute “Jozef Stefan”, Ljubljana, Slovenia.
    Liong Wee Kwong, L.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    La Rosa, J.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    Lee, S.-H.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    Levy-Palomo, I.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    Malatova, M.
    National Institute of Public Health, Praha, Czech Republic.
    Maruo, Y.
    JNC Tokai works, Health and Safety Division, Tokai-mura, Ibaraki, Japan.
    Mitchell, P.
    University College Dublin, Department of Experimental Physics, Dublin, Ireland.
    Murciano, I. V.
    Universite Politecnica de Barcelona, Instituto de Tecnicas Energeticas, Barcelona, Spain.
    Nelson, R.
    Bedford Institute of Oceanography, Department of Fisheries and Oceans, Dartmounth-N.S, Canada.
    Nouredine, A.
    Centre de Recherche Nucléaire d’Alger, Laboratoire des Etudes d’Impact Radiologique, Alger, Algeria.
    Oh, J.-S.
    Southampton Oceanography Centre, University of Southampton, Southampton, UK.
    Oregioni, B.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    Le Petit, G.
    DASE/RCE, C.E.A., Bruyères-le-Châtel, France.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    Reineking, A.
    Georg-August-Universitaet, Zentrales Isotopenlaboratorium, Goettingen, Germany.
    Smedley, P. A.
    CEFAS, Directorate of Fisheries Research, Lowestoft, Suffolk, UK.
    Suckow, A.
    Joint Geological Research Institute, Hannover, Germany.
    van der Struijs, T. D. B.
    RIKILT, Wageningen, The Netherlands.
    Voors, P. I.
    NRG, Petten, The Netherlands.
    Yoshimizu, K.
    Japan Chemical Analysis Centre, Chiba, Japan.
    Wyse, E.
    International Atomic Energy Agency, Marine Environment Laboratory, Monaco, & Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava, Slovakia.
    Reference material for radionuclides in sediment. IAEA-384 (Fangataufa lagoon sediment).2007In: Journal of Radioanalytical and Nuclear Chemistry, ISSN 0236-5731, E-ISSN 1588-2780, Vol. 273, no 2, p. 383-393Article in journal (Refereed)
    Abstract [en]

    A reference material designed for the determination of anthropogenic and natural radionuclides in sediment, IAEA-384 (Fangataufa Lagoon sediment), is described and the results of certification are presented. The material has been certified for 8 radionuclides (40K, 60Co, 155Eu, 230Th, 238U, 238Pu, 239+240Pu and 241Am). Information values are given for 12 radionuclides (90Sr, 137Cs, 210Pb (210Po), 226Ra, 228Ra, 232Th, 234U, 235U, 239Pu, 240Pu and 241Pu). Less reported radionuclides include 228Th, 236U, 239Np and 242Pu. The reference material may be used for quality management of radioanalytical laboratories engaged in the analysis of radionuclides in the environment, as well as for the development and validation of analytical methods and for training purposes. The material is available from IAEA in 100 g units.

  • 34.
    Salih, Isam
    et al.
    Linköping University, Department of Medicine and Care.
    Bäckström, Mattias
    Man-Technology-Environment Research Centre, Örebro University, Örebro, Sweden.
    Karlsson, Stefan
    Lund, Eva
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Impact of fluoride and other aquatic parameters on radon concentration in natural waters2004In: Journal of Applied Radiation & Isotopes, ISSN 0969-8043, Vol. 60, no 1, p. 99-104Article in journal (Refereed)
    Abstract [en]

    Radon (222Rn) accumulation in water in relation to stable elements was studied for the purpose of determining factors influencing the transfer of 222Rn to and from water. In 72 groundwater samples, 222Rn and about 70 analytical parameters were analysed using radiometric and ICP-MS techniques. Using multivariate statistics (partial least squares), it was observed that 222Rn has a positive correlation with fluoride and uranium. The correlation with fluoride was further investigated by a laboratory time-scale experiment to measure the emanation of 222Rn from water as a function of fluoride, pH and carbonate. The transfer of 222Rn from water was measured by continuous monitoring in air in a closed loop set-up. It was observed that fluoride in water adhere or trap 222Rn preferably in acidic water (pH 3). It is suspected that natural physical processes (such as diffusion and microbubble phenomenon) are less effective to transport 222Rn in the presence of fluoride.

  • 35.
    Salih, Isam
    et al.
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Lund, Eva
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences.
    Determination of 222Rn and 226Ra in water using a large volume ionisation chamber2000In: Journal of Environmental Radioactivity, ISSN 0265-931X, Vol. 48, no 2, p. 235-245Article in journal (Refereed)
    Abstract [en]

    A new method for measuring 222Rn and 226Ra in water has been devised. It is based on exhaling radon to a void volume by continuous bubbling of air through the water. The exhaled radon is then transferred in a closed circuit to a modified radon gas pulse ionisation chamber for alpha-spectrometric measurements. About 86% of the radon in water is transferred from 0.75 l of water to the void volume (3.2 l). The set-up offers direct and specific 222Rn measurements for a wide range of concentrations and shows a low detection limit (LLD=45 mBq l−1 for 8 h counting time). Radium in water is measured, via radon, after sample storage for a month. The method was compared with gamma ray spectrometry for radon and for radium, the latter after pre-concentration by co-precipitation with MnO2 from 10 l water samples. An excellent agreement between the two techniques was obtained. As a part of a radon survey, the method was employed for analysis of drinking water from bedrock wells.

  • 36.
    Salih, Isam
    et al.
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Lund, Eva
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences.
    Uranium and thorium series radionuclides in drinking water from drilled bedrock wells: correlation to geology and bedrock radioactivity and dose estimation2002In: Radiation protection dosimetry, ISSN 0144-8420, Vol. 102, no 3, p. 249-258Article in journal (Refereed)
    Abstract [en]

    Natural radioactivity in drinking water from 328 drilled wells was studied in correlation to source parameters. Poor correlation to both aquifer geology and bedrock radioactivity was observed. Concentrations of 238U, 226Ra, 228Ra, 222Rn and 210Po in groundwater samples was in the ranges <0.027-5.3, <0.016-4.9, <0.014-1.24, 5-8105 and <0.05-0.947 Bq.l(-1) respectively. In about 80% of the sites the radon concentration exceeds the Nordic recommended exemption level for radon in drinking water and 15% of the sites exceed the action limit. The effective doses from ingestion were calculated and presented in association with geology. Doses due to ingestion ranged between 0.05 and 20.4 mSv.y(-1), where the average contribution from 222Rn amounted to 75%. In comparison, the effective doses from inhalation of indoor 222Rn ranged between 0.2 and 20 mSv.y(-1). The average contribution from inhalation of 222Rn in air to the total effective dose (ingestion+inhalation) was 58 +/- 22%, 73 +/- 18% and 77 +/- 16% (1 SD) for the age categories 1 y, 10 y and adults respectively.

  • 37.
    Salih, Isam
    et al.
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences.
    Pettersson, Håkan
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Sivertun, Åke
    Linköping University, Department of Computer and Information Science, GIS - Geographical Information Science Group. Linköping University, The Institute of Technology.
    Lund, Eva
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences.
    Spatial correlation between radon (222Rn) in groundwater and bedrock uranium (238U): GIS and geostatistical analyses2002In: Journal of Spatial Hydrology, ISSN 1530-4736, Vol. 2, no 2, p. 1-10Article in journal (Refereed)
    Abstract [en]

    This study describes approaches to create surface maps of radon in groundwater based on measurements of radon (222Rn) in drilled bedrock wells at unevenly distributed sites and uranium bedrock maps from the South East of Sweden, the Östergotland county (N 58°14’ – N 58°56’and E 14°53’ – E 16°06’), see figure 1. Geostatistical techniques of inverse distance weighted(IDW), kriging and cokriging were compared in terms of their interpolation power and correlation between the produced radon in the water layer and the bedrock uranium layer. The goal of these analyses and calculations is to improve our understanding concerning the factors influencing the transport of radon. Therefore, these interpolation techniques were investigated by optimizing parameters that are used in the specific interpolation. Using the IDW interpolator method at fixed radius enabled us to determine the linkage or search distances for auto correlation, and linkage between radon in water and bedrock. This method showed good agreement with the cokriging method when using uranium concentration as a secondary variable. Good interpolation layers (with least root mean square errors RMSE=232) were obtained by kriging. However, the kriged radon surface showed poor correlation with bedrock uranium layers. The best radon in waterlayer that match with uranium in bedrock layer was produced using IDW interpolator (RMSE=377, using all points). The correlation coefficient (R2) is 0.5 while for the kriging method the best correlation is R2 = 0.1. A compromise between the two approaches is demonstrated.

  • 38.
    Sandborg, Michael
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Fransson, Sven Göran
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care. Östergötlands Läns Landsting, Heart Centre, Department of Cardiology.
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Evaluation of patient-absorbed doses during coronary angiography and intervention by femoral and radial artery access2004In: European Radiology, ISSN 0938-7994, E-ISSN 1432-1084, Vol. 14, no 4, p. 653-658Article in journal (Refereed)
    Abstract [en]

    The aim of this study was to compare the radiation dose to patients during coronary angiography (CA) and coronary intervention (percutaneous transluminal coronary angioplasty, PTCA) by the femoral or radial artery access routes. A plane-parallel ionisation chamber, mounted on an under-couch X-ray tube (Siemens Coroskop TOP with an optional dose reduction system), recorded the dose-area product (DAP) to the patient from 40 coronary angiographies and 42 coronary interventions by the femoral route. The corresponding numbers for radial access were 36 and 24, respectively. Using a human-shaped phantom, conversion factors between maximum entrance surface dose and DAP were derived for CA and CA plus PTCA, respectively. The dose to the staff was measured with TL dosimeters for 22 examinations. Fluoroscopy time and DAP were significantly (p=0.003) larger using the radial access route for coronary angiography (7.5 min, 51 Gy cm2) than the corresponding values obtained from femoral access route (4.6 min, 38 Gy cm2. For CA plus PTCA the fluoroscopy time and DAP were larger for radial access (18.4 min, 75 Gy cm2) than for femoral access (12.5 min, 47 Gy cm2, p=0.013). In our experience, radial access did significantly prolong the fluoroscopy time and increase the patient doses.

  • 39.
    Sandborg, Michael
    et al.
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    Nilsson Althén, Jonas
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics.
    Rossitti, Sandro
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Anaesthetics, Operations and Specialty Surgery Center, Department of Neurosurgery.
    Patient Organ Radiation Doses During Treatment for Aneurysmal Subarachnoid Hemorrhage2012In: Clinical neuroradiology, ISSN 1869-1447, Vol. 22, no 4, p. 315-325Article in journal (Refereed)
    Abstract [en]

    PURPOSE: The aim of this retrospective study was to estimate risk organ doses and to estimate radiation risks during the imaging work-up and treatment for aneurysmal subarachnoid hemorrhage (SAH). METHODS: The imaging procedures comprised computed tomography and digital subtraction angiography studies for diagnosis or endovascular interventional procedures in 50 consecutive patients. Equivalent organ doses (H(T)) to skin, brain, eye lens, salivary glands, thyroid and oral mucosa were measured using thermoluminescence dosimeters in an anthropomorphic head phantom. Picture archiving and communication system (PACS) and radiological information system (RIS) records were analyzed and the frequency of each imaging procedure was recorded as well as the registered individual kerma-length product (P(KL)) and the kerma-area product (P(KA)). The doses were computed by multiplying the recorded P(KL) and P(KA) values by the conversion coefficients H(T)/P(KL) and H(T)/P(KA) from the head phantom. RESULTS: The mean fluoroscopy time, P(KL) and P(KA) were 38 min, 7269 mGy cm and 286 Gy cm(2), respectively. The estimated mean equivalent doses were as follows: skin 2.51 Sv, brain 0.92 Sv, eye lens 0.43 Sv and salivary glands 0.23 Sv. Maximum organ doses were 2.3-3.5 times higher than the mean. Interventional procedures contributed 66 % to skin dose, 55 % to brain dose and 25 % to eye lens dose. Of the patients with an estimated skin dose exceeding 6 Sv, only 1 developed temporary epilation. CONCLUSION: The risk for radiation-induced cancer for SAH patients is low (2-3 cases per 1,000 patients, of which 90 % are expected to be benign types) compared with the risk of tissue reactions on the head such as skin erythema and epilation (1 temporary epilation per 50 patients).

  • 40.
    Sandborg, Michael
    et al.
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Linköping University, Center for Medical Image Science and Visualization (CMIV). Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Rossitti, Sandro
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Anaesthetics, Operations and Specialty Surgery Center, Department of Neurosurgery.
    Pettersson, Håkan
    Linköping University, Department of Medicine and Care, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Local skin and eye lens equivalent odses in interventional neuroradiology2010In: European Radiology, ISSN 0938-7994, E-ISSN 1432-1084, Vol. 20, no 3, p. 725-733Article in journal (Refereed)
    Abstract [en]

    Purpose  To assess patient skin and eye lens doses in interventional neuroradiology and to assess both stochastic and deterministic radiation risks. Methods  Kerma–area product (P KA) was recorded and skin doses measured using thermoluminescence dosimeters. Estimated dose at interventional reference point (IRP) was compared with measured absorbed doses. Results  The average and maximum fluoroscopy times were 32 and 189 min for coiling and 40 and 144 min for embolisation. The average and maximum P KA for coiling were 121 and 436 Gy cm2, respectively, and 189 and 677 Gy cm2 for embolisation. The average and maximum values of the measured maximum absorbed skin doses were 0.72 and 3.0 Sv, respectively, for coiling and 0.79 and 2.1 Sv for embolisation. Two out of the 52 patients received skin doses in excess of 2 Sv. The average and maximum doses to the eye lens (left eye) were 51 and 515 mSv (coiling) and 71 and 289 mSv (embolisation). Conclusion  The ratio between the measured dose and the dose at the IRP was 0.44 ± 0.18 mSv/mGy indicating that the dose displayed by the x-ray unit overestimates the maximum skin dose but is still a valuable indication of the dose. The risk of inducing skin erythema and lens cataract during our hospital procedures is therefore small.

  • 41.
    Sandborg, Michael
    et al.
    Linköping University, Center for Medical Image Science and Visualization, CMIV. Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    Rossitti, Sandro
    Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Sinnescentrum, Department of Neurosurgery UHL.
    Pettersson, Håkan
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    Nilsson Althen, Jonas
    Linköping University, Department of Medical and Health Sciences, Radiation Physics. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Surgery, Orthopaedics and Cancer Treatment, Department of Radiation Physics UHL.
    Patient organ radiation doses during treatment for aneurismal subarachnoid haemorrhage2011Conference paper (Other academic)
  • 42.
    Stark, K.
    et al.
    Department of Systems Ecology, Stockholm University, Stockholm 106 91, Sweden.
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    External radiation doses from 137Cs to frog phantoms in a wetland area: In situ measurements and dose model calculations2008In: Radiation and Environmental Biophysics, ISSN 0301-634X, E-ISSN 1432-2099, Vol. 47, no 4, p. 481-489Article in journal (Refereed)
    Abstract [en]

    For assessment of external radiation doses to frogs in a wetland area contaminated with 137Cs, frog phantoms were constructed from polymethyl methacrylate (PMMA). The frog phantoms contained thermoluminescence (TL) chips and were used in situ at two study sites to measure doses. To test if higher doses are received by the sensitive skin of frogs, extra-thin TL chips were applied close to the surface of the frog phantoms. In addition, the measured doses were compared with those calculated on the basis of soil sample data from the wetland multiplied with dose-conversion coefficients from the US Department of Energy's RESRAD-BIOTA code and from the ERICA assessment tool. Measured doses were generally lower than those calculated to ellipsoids used to model frogs. Higher doses were measured at the frog phantoms' surfaces in comparison to inner parts at one of the two sites indicating that the frogs' thin skin could receive a higher radiation dose than expected. In the efforts to assure protection of non-human biota, in situ measurements with phantoms provide valuable dose information and input to dose models in site-specific risk assessments of areas contaminated with radionuclides. © 2008 Springer-Verlag.

  • 43.
    Stark, Karolina
    et al.
    Stockholm University .
    Pettersson, Håkan B L
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Response to "On the calculation of external radiation doses from Cs-137 to frog phantoms in a wetland area" by G. Prohl and A. Ulanovsky2009In: RADIATION AND ENVIRONMENTAL BIOPHYSICS, ISSN 0301-634X, Vol. 48, no 2, p. 245-246Article in journal (Other academic)
  • 44.
    Söderberg, Jonas
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics.
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Katastrofer orsakade av joniserande strålning2002In: Katastrofmedicin / [ed] Sten Lennquist, Linköping: Linköpings universitet , 2002, 2, p. 303-318Chapter in book (Other academic)
    Abstract [sv]

    Denna bok beskriver hur man ska hantera den svåra uppgiften att bedriva sjukvård på effektivast möjliga sätt i alla de olika typer av situationer där det akuta vårdbehovet överstiger vad som kan klaras med tillgängliga resurser. Den täcker hela omhändertagandekedjan från skadeområdet till definitiv behandling på sjukhus. Denna nya upplaga av Katastrofmedicin är en helt ny bok, utökad till innehållet och uppdaterad mot bakgrund av den omfattande utveckling som präglat detta ämnesområde sedan föregående upplaga.

    Katastrofmedicin kan användas som både läromedel vid utbildning på alla nivåer och som en lättillgänglig handbok och vänder sig till såväl personal i prehospital vård som till läkare och sjuksköterskor på sjukhusens akutmottagningar och inom berörda specialiteter.

  • 45. Togowa, O
    et al.
    Povinec, PP
    Pettersson, Håkan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radio Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Collective dose estimates by the marine food pathway from liquid radioactive wastes dumped in the sea of Japan.1999In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 237, p. 241-248Article in journal (Refereed)
  • 46.
    Vesterbacka, P
    et al.
    Radiation and Nuclear Safety Authority, Finland.
    Pettersson, Håkan
    Linköping University, Department of Medicine and Health Sciences, Radiation Physics . Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics. Linköping University, Faculty of Health Sciences.
    Hanste, U-M
    Radiation and Nuclear Safety Authority, Finland.
    Jakobson, E
    Radiation Safety Department, Estonia.
    Kolstad, T
    Norwegian Radiation Protection Authority.
    Roos, P
    Riso National Laboratory.
    Östergren, I
    Swedish Radiation Safety Authority .
    Intercomparison of Rn-222 determination from groundwater2010In: Applied Radiation and Isotopes, ISSN 0969-8043, E-ISSN 1872-9800, Vol. 68, no 1, p. 214-218Article in journal (Refereed)
    Abstract [en]

    An intercomparison exercise on Rn-222 determination in groundwater was organized between eight Nordic laboratories. The individual laboratory results were in most cases within 20% of the median value and within reported uncertainties. Considering the particular difficulties in preparing, transporting and analyzing Rn-222, being a gaseous radionuclide, the results indicate a high analytical capability among the Nordic laboratories. In order to maintain a high analytical quality, similar intercomparisons will also be needed in the future.

1 - 46 of 46
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf