Theory of thermoluminescence gamma dose response: The unified interaction model
Theory of thermoluminescence gamma dose response: The unified interaction model
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DOI：
10.1016/s0168-583x(01)00712-1
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发表时间：
2001-09-01
影响因子：
1.3
通讯作者：
Horowitz, YS
中科院分区：
文献类型：
--
作者：
Horowitz, YS
我们描述了一个全面的热释光（TL）剂量响应理论的发展，统一的相互作用模型（UNIM）。UNIM基于辐射吸收阶段和复合阶段机制，并且可以在统一和自洽的概念和数学形式中描述重带电粒子（在扩展轨道相互作用模型- ETIM的框架中）以及各向同性电离伽马射线和电子（在TC/LC成对复合模型的框架中）的剂量响应。光学吸收剂量响应的理论也被纳入UNIM来描述辐射吸收阶段。UNIM被施加到LiF：Mg，Ti的剂量响应超线性特性，特别是和独特的成功解释的复合峰5的超线性的电离密度的依赖性在100 -100。UNIM被证明是能够解释定性或定量的TL剂量响应的所有主要特征与许多的可变参数的模型强烈约束的辅助光学吸收和敏化测量。(C)2001 Elsevier Science B. V.保留所有权利。
We describe the development of a comprehensive theory of thermoluminescence (TL) dose response, the unified interaction model (UNIM). The UNIM is based on both radiation absorption stage and recombination stage mechanisms and can describe dose response for heavy charged particles (in the framework of the extended track interaction model - ETIM) as well as for isotropically ionising gamma rays and electrons (in the framework of the TC/LC geminate recombination model) in a unified and self-consistent conceptual and mathematical formalism. A theory of optical absorption dose response is also incorporated in the UNIM to describe the radiation absorption stage. The UNIM is applied to the dose response supralinearity characteristics of LiF:Mg,Ti and is especially and uniquely successful in explaining the ionisation density dependence of the supralinearity of composite peak 5 in TLD-100. The UNIM is demonstrated to be capable of explaining either qualitatively or quantitatively all of the major features of TL dose response with many of the variable parameters of the model strongly constrained by ancilliary optical absorption and sensitisation measurements. (C) 2001 Elsevier Science B.V. All rights reserved.