Nail I, Horowitz Y S, Oster L, Brandan M E, Rodríguez-Villafuerte M, Buenfil A E, Ruiz-Trejo C, Gamboa-Debuen I, Avila O, Tovar V M, Olko P, Ipe N
Physics Department, Ben Gurion University of the Negev, Beersheva 84105, Israel.
Radiat Prot Dosimetry. 2006;119(1-4):180-3. doi: 10.1093/rpd/nci615. Epub 2006 Apr 27.
Optical absorption (OA) dose-response of LiF:Mg,Ti (TLD-100) is studied as a function of electron energy (ionisation density) and irradiation dose. Contrary to the situation in thermoluminescence dose-response where the supralinearity is strongly energy-dependent, no dependence of the OA dose filling constants on energy is observed. This result is interpreted as indicating a lack of competitive process in the radiation absorption stage. The lack of an energy dependence of the dose filling constant also suggests that the charge carrier migration distances are sufficiently large to smear out the differences in the non-uniform distribution of ionisation events created by the impinging gamma/electron radiation of various energies.
研究了LiF:Mg,Ti（TLD - 100）的光吸收（OA）剂量响应与电子能量（电离密度）和辐照剂量的函数关系。与热释光剂量响应中超线性强烈依赖能量的情况相反，未观察到OA剂量填充常数对能量的依赖性。该结果被解释为表明在辐射吸收阶段缺乏竞争过程。剂量填充常数缺乏能量依赖性还表明，电荷载流子迁移距离足够大，足以消除由各种能量的入射伽马/电子辐射产生的电离事件非均匀分布中的差异。
