A model describing the possibility of simultaneous recombination of two electrons into two-hole recombination centers yielding thermoluminescence (TL) is presented. This follows previous reports on such transitions in some other solid-state phenomena. The simulated results may explain some unusual TL effects. These include the occurrence of very narrow peaks which results in the evaluation of very high effective activation energies and exceedingly high effective frequency factors, sometimes reported in the literature. The model can also explain the more-than-quadratic dose dependence of TL. Other effects are peaks with symmetry factors smaller than that of first-order peaks or intermediate between that of first and of second order. Another result of the simulations is the possibility of first-order-like peaks that shift with the excitation dose. Finally, the possibility of a dose-rate effect is also seen in the results of the simulations. In addition to the numerical simulations, limited to a small number of sets of parameters, an analytical treatment with some approximations has been developed. For a certain set of parameters and rather low excitation dose, the agreement between the results of the simulation and theory has been very good.

提出了一个模型，描述了将两个电子同时重组为两个空穴的重组中心而产生热致发光（TL）的可能性。这是在先前关于其他固态现象中这种转变的报道之前。仿真结果可以解释某些异常的TL效应。这些包括非常窄的峰的出现，这导致评估非常高的有效活化能和非常高的有效频率因数，有时在文献中有所报道。该模型还可以解释TL的二次剂量依赖性。其他影响是对称性因子小于一阶峰或处于一阶和二阶之间的中间值的峰。模拟的另一个结果是可能出现一阶峰随激发剂量的变化。最后，在模拟结果中还可以看到剂量率效应的可能性。除了数值模拟（限于少数参数集）之外，还开发了一些近似的解析处理。对于某些参数集和相当低的激发剂量，仿真结果和理论之间的一致性非常好。