Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Ave, Madison, WI, 53705, USA.
Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Ave, Madison, WI, 53705, USA.
Appl Radiat Isot. 2024 Jun;208:111307. doi: 10.1016/j.apradiso.2024.111307. Epub 2024 Mar 29.
Early 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.
早期使用热释光剂量计（TLD）测量α粒子吸收剂量的工作报告了 TLD 之间相对较高的变化（10%），这对于现代剂量测量应用是不理想的。本工作概述了一种通过应用特定于α粒子的芯片因子（CF）来增加使用α发射放射性核素的 TLD 测量吸收剂量的精度的方法，该因子单独表征 TLD 对α粒子的灵敏度。对于标准 TLD 芯片，TLD 之间的变化从 21.8%降低到 6.7%，对于薄 TLD 芯片，TLD 之间的变化从 7.9%降低到 3.3%。本工作已经证明 TLD-100 可以经过校准以精确测量α发射放射性核素的水吸收剂量。
