Simultaneous Determination of Dose and Elapsed Time in Accident Dosimetry Using Thermoluminescent Materials

Abstract

Information about the time which has elapsed since an external radiation exposure is useful in determining the time of occurrence of an abnormal exposure in personal and accident dosimetry. This information can be obtained from certain irradiated thermoluminescent dosemeters. A computational method based on decay rates of thermoluminescence glow peaks has been used to estimate a range of suitable values of trap lifetimes of low temperature glow peaks. This provides a basis for the selection of an appropriate thermoluminescent material to assess not only the absorbed dose from a radiation exposure but also the elapsed time. The results of experimental studies have been used to obtain additional information on decay rates as a function of energy, temperature, and absorbed dose.To be presented at 8th International Conference on Solid State Dosimetry

TLD assessment of mouse dosimetry during microCT imaging

“…25 Extensive literature exists on TL dosimetry and a concise review on TLD behavior and properties provide the basis for the use of TLDs in these studies. [26][27][28][29][30][31][32][33][34] MicroCT is routinely employed in our investigations as a quantitative and qualitative screening tool to assess tumor progression pre-and post-targeted radiotherapy. Acute radiation effects resulting from doses of whole body irradiation, including prodromal and lethal effects, limit the number of small animal microCT imaging studies that can be performed on the same subject.…”

Reusability and Fractional read-out in CaF2:Tm (TLD-300)

“…This study has been done in connection with a study of the applicability of peak height ratio of TLD-300, H 3 (150"C)/H 5 (240"C), in beta dosimetry [3].…”