Abstract In the scope to the discovery of new detectors for high and very-high gamma and neutron radiation dose (mGy-MGy), synthetic polycrystals of CaSiO3 have been produced by the devitrification method in our laboratory. CaSiO3 polycrystals were irradiated with thermal, epithermal and a small fraction of fast neutrons. In the position of irradiation, the thermal neutron flux is about 83% of the total neutron flux and the thermal neutron fluences range from 5.82 × 1013 to 2.97 × 1016 n/cm2. This thermal neutron reacts with Ca, Si and O through (n,γ) process, all or part of the gamma emitted in this reaction is absorbed by the sample and is responsible for the induction of thermoluminescence (TL). The total energy emitted by the (n,γ) reaction was calculated analytically. Furthermore, Monte Carlo simulations using MCNP5 radiation transport code was carried out to calculate the deposited dose on CaSiO3 by the neutron interaction finding doses ranging from 42 Gy to 21 kGy. CaSiO3 TL glow curves, after radiation exposure from the reactor, display the main prominent TL peak around 234–259 °C and when exposed to gamma radiation (Co-60) it shows the main TL peak around same 234–272 °C.

中文翻译：

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硅酸钙多晶对高和极高中子剂量的计算和实验响应

摘要 在发现用于高和极高伽马和中子辐射剂量（mGy-MGy）的新型探测器的范围内，我们实验室已经通过反玻璃化方法生产了合成的 CaSiO3 多晶。CaSiO3 多晶用热中子、超热中子和一小部分快中子辐照。在辐照位置，热中子通量约为总中子通量的 83%，热中子注量范围为 5.82 × 1013 至 2.97 × 1016 n/cm2。该热中子通过 (n,γ) 过程与 Ca、Si 和 O 发生反应，该反应中发射的全部或部分伽马被样品吸收，并引起热释光 (TL)。(n,γ) 反应发射的总能量通过分析计算。此外，使用 MCNP5 辐射传输代码进行蒙特卡罗模拟，通过中子相互作用计算 CaSiO3 上的沉积剂量，发现剂量范围为 42 Gy 至 21 kGy。CaSiO3 TL 辉光曲线，在反应器辐射暴露后，在 234-259 °C 附近显示主要的突出 TL 峰，当暴露于伽马辐射 (Co-60) 时，它在相同的 234-272 °C 附近显示主要的 TL 峰。