Development of ammonium tartrate as an ESR dosimeter material for clinical purposes
2000 (English)In: Applied Radiation and Isotopes, ISSN 0969-8043, E-ISSN 1872-9800, Vol. 52, no 5, 1235-1241 p.Article in journal (Refereed) Published
The crystalline substance ammonium tartrate is investigated with respect to its suitability as a clinical dosimetry material. The properties investigated are: the radical stability for absorbed doses relevant for clinical use, the improvement in sensitivity when the crystals are deuterated and the linear electron tranfer (LET)-dependence. After photon irradiation to an absorbed dose of 20 Gy, the signal increases rapidly during the first 6 h. After this period, the changes are more moderate and can be corrected for. The signal-to-noise ratio of irradiated ammonium tartrate is twice the corresponding value of alanine. By deuterating the crystals, the sensitivity can be further improved by a factor of 1.4. As expected, the signal decreases with increasing LET of the radiation, but no changes in the spectrum shape was observed.
Place, publisher, year, edition, pages
2000. Vol. 52, no 5, 1235-1241 p.
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-27009DOI: 10.1016/S0969-8043(00)00077-4Local ID: 11650OAI: oai:DiVA.org:liu-27009DiVA: diva2:247560