Thermoluminescence dose response of photon irradiated NaCl: Unified interaction model analysis of the dependence of the supralinearity on photon energy
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Thermoluminescence dose response of photon irradiated NaCl: Unified interaction model analysis of the dependence of the supralinearity on photon energy

机译:光子辐照的热致发光剂量响应NaCl:统一相互作用模型分析对光子能量的SupralInity的依赖性

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AbstractThe thermoluminescence (TL) dose response of a common Israeli table salt (NaCl) was measured following137Cs gamma ray and 125?kVp X-ray irradiation. The dose response is linear, then turns supralinear and finally enters into saturation. The phenomenon of TL linear/supralinear response and the dependence of the supralinearity on ionization density/photon energy is of major interest theoretically and also impacts the practical use of the material as a reliable dosimeter. Prior to this investigation only the supralinearity of the glow peaks of TLD-100 had been investigated. The supralinearity of the major glow peaks (peaks 3 and 5) of the investigated NaCl is strongly dependent on photon energy which lends credence to the probability that the ionization density dependence of TL supralinearity is a common if not universal phenomenon. The Unified Interaction Model used herein is based on the joint action of geminate and conduction band mediated recombination and was used to simulate the dose response of peaks 3 and 5. The simulated dose response allows a reliable estimate of the dose threshold where the supralinearity begins to appear. This information is useful in the evaluation of the Israeli salts as pragmatic retrospective dosimeters in the event of a radiological event.Highlights
机译:<![CDATA [ 抽象 普通以色列表盐(NaCl)的热致发光(TL)剂量响应在 137 CS伽马射线和125?KVP X射线照射。剂量响应是线性的,然后转动Supralinear并最终进入饱和度。 T1线性/ Supralinear响应的现象和Supralineearity对电离密度/光子能量的依赖性理论上是主要的兴趣,并且还影响材料作为可靠剂量计的实际使用。在本调查之前,仅调查了TLD-100的辉光峰的Supralinality。所研究的NaCl的主要辉光峰(峰3和5)的SupralineeArearity强烈依赖于光子能量,这使得能量归因于TL SupralInity的电离密度依赖性的概率是普遍的,如果不是普遍的现象。这里使用的统一相互作用模型基于GEMINAT和传导带介导的重组的关节作用,并用于模拟峰值3和5的剂量响应。模拟剂量响应允许对SupralInity开始的剂量阈值可靠估计出现。该信息在放射事件发生时,在以色列盐评估以色列盐作为务实的回顾剂量计。 突出显示

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