As is known from the early stimulated luminescence studies, dose-response curves (DRCs) are not consistent with the curves of the dependence of the electron concentration in the traps on the irradiation dose delivered to a crystal, even for a system consisting of one trap and one recombination centre. However, for the optically stimulated luminescence (OSL) signal originating from more complex trap and recombination centre systems, it is often observed that the DRC can be described by a simple single saturating exponential (SSE) or a double saturating exponential (DSE) function. Using simulations, we show that although good fit compliance can often be achieved, the parameters obtained only in some cases correctly describe the relationship between the occupancy of individual traps and the dose. Simulations performed for the DRC construction procedure included a step allowing for the correction of possible changes in sensitivity. A model of two traps active in the OSL process and two recombination centres was tested. The modelling shows that the results of the DRC analysis using SSE functions strongly depend not only on the relationship of the trapping probability coefficients of traps but also on their concentrations and the concentrations of recombination centres. The shape of the DRC, and therefore the fitting parameters, also change with the annealing temperature used in the DRC measurement protocol.

中文翻译：

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通过敏感性校正程序测量的 OSL 剂量反应曲线读取的陷阱填充参数的可靠性


从早期的受激发光研究中可以知道，剂量-反应曲线 （DRC） 与陷阱中电子浓度对传递到晶体的照射剂量的依赖性曲线不一致，即使对于由一个陷阱和一个复合中心组成的系统也是如此。然而，对于源自更复杂的陷阱和复合中心系统的光受激发光 （OSL） 信号，通常观察到 DRC 可以用简单的单饱和指数 （SSE） 或双饱和指数 （DSE） 函数来描述。使用模拟，我们表明，尽管通常可以实现良好的拟合顺应性，但仅在某些情况下获得的参数正确描述了单个陷阱的占用率与剂量之间的关系。为 DRC 构建程序执行的模拟包括一个步骤，允许校正灵敏度的可能变化。测试了两个在 OSL 过程中活跃的陷阱和两个复合中心的模型。建模表明，使用 SSE 函数的 DRC 分析结果不仅强烈取决于陷阱的捕获概率系数之间的关系，还取决于它们的浓度和复合中心的浓度。DRC 的形状以及拟合参数也会随 DRC 测量协议中使用的退火温度而变化。