The Unified Interaction Model (UNIM) simulates the linear/supralinear dose response of the glow peaks of LiF:Mg,Ti (TLD-100) and other thermoluminescent materials and the dependence of the supralinearity on photon/electron energy. The UNIM is based on the radiation action of spatially correlated trapping centres (TCs) and luminescent centres (LCs), which results in localised (geminate) electron/hole recombination by quantum mechanical tunnelling. The linear dose response is mainly attributed to geminate recombination. UNIM simulations of the dose response of glow peak 5 in LiF:Mg,Ti following 500 and 8 keV electron/photon irradiation are discussed. In addition, simulations of postirradiation photo-excitation that redistribute the electrons and holes in the various TCs and LCs are demonstrated to extend the region of linear dose response and reduce the supralinearity. Experimental verification of dose–response linearity for levels of dose ≤30 Gy following both 3.65 and 5 eV photon excitation is presented.

中文翻译：

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统一相互作用模型：TL 剂量响应的模拟和通过后辐照光子激发对预期剂量响应线性度的实验验证

统一相互作用模型 (UNIM) 模拟 LiF:Mg,Ti (TLD-100) 和其他热致发光材料的发光峰的线性/超线性剂量响应以及超线性对光子/电子能量的依赖性。UNIM 基于空间相关俘获中心 (TC) 和发光中心 (LC) 的辐射作用，通过量子力学隧道效应导致​​局部（成对）电子/空穴复合。线性剂量反应主要归因于双子重组。讨论了在 500 和 8 keV 电子/光子辐照后 LiF:Mg,Ti 中辉光峰 5 的剂量响应的 UNIM 模拟。此外，证明了重新分配各种 TC 和 LC 中的电子和空穴的辐照后光激发模拟可以扩展线性剂量响应区域并降低超线性。提出了在 3.65 和 5 eV 光子激发后剂量≤30 Gy 的剂量反应线性的实验验证。