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Assessment of correlated dose and sensitivity profiles on a multi-slice CT scanner
Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Surgery in Östergötland. Linköping University, Faculty of Health Sciences.
2005 (English)In: Radiation Protection Dosimetry, ISSN 0144-8420, E-ISSN 1742-3406, Vol. 114, no 1-3, 332-336 p.Article in journal (Refereed) Published
Abstract [en]

In the case of computed tomography (CT) scanners as well as other imaging techniques utilising ionising radiation, it is imperative that radiation is confined to the sensitive part of the image detector. Assuring this for a CT scanner requires detailed information about the scanner dose and sensitivity profiles and their spatial correlation. The profiles should ideally be co-centric and tightly fit to each other. Ensuring this inherent performance of the scanner can be seen as one of the fundamental steps in optimising diagnostic examinations with CT. A measurement device using a dedicated liquid ionisation chamber is employed to investigate the performance of a Toshiba Aquilion 16 scanner in this aspect. Dose profile and sensitivity profile pairs for four collimations are presented where each pair of profiles are spatially correlated to each other. The measurement device can be applied to any scanner for fast and accurate assessment of dose and sensitivity profiles and their spatial correlation. © The Author 2005. Published by Oxford University Press. All rights reserved.

Place, publisher, year, edition, pages
2005. Vol. 114, no 1-3, 332-336 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-28759DOI: 10.1093/rpd/nch500Local ID: 13936OAI: diva2:249571
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2011-01-11

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Bahar Gogani, Jalil
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Radiation PhysicsDepartment of Surgery in ÖstergötlandFaculty of Health Sciences
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