Thermoluminescent dosimeters (TLD-100) for absorbed dose measurements in alpha-emitting radionuclides

Appl Radiat Isot. 2024 Mar 29;208:111307. doi: 10.1016/j.apradiso.2024.111307. Online ahead of print.ABSTRACTEarly works that used thermoluminescent dosimeters (TLDs) to measure absorbed dose from alpha particles reported relatively high variation (10%) between TLDs, which is undesirable for modern dosimetry applications. This work outlines a method to increase precision for absorbed dose measured using TLDs with alpha-emitting radionuclides by applying an alpha-specific chip factor (CF) that individually characterizes the TLD sensitivity to alpha particles. Variation between TLDs was reduced from 21.8% to 6.7% for the standard TLD chips and 7.9% to 3.3% for the thin TLD chips. It has been demonstrated by this work that TLD-100 can be calibrated to precisely measure the absorbed dose to water from alpha-emitting radionuclides.PMID:38564840 | DOI:10.1016/j.apradiso.2024.111307

Source: Applied Radiation and Isotopes - April 2, 2024 Category: Radiology Authors: Andrew J White Sean P Jollota Cliff G Hammer Ahtesham U Khan Larry A DeWerd Wesley S Culberson Source Type: research