AI 中文总结
研究条形闪烁体探测器光传输，用万花筒光线追踪方法构建能量沉积模型，以PWO晶体为例验证，该模型与蒙特卡洛模拟结果相符且速度快，适用于探测器实时校准，其光线追踪还能加速蒙特卡洛模拟。
AI 中文摘要
条形闪烁体探测器如今在应用物理的许多领域使用，特别是医学、土木工程、地下资源测绘和安全领域。本文提供了长方体形条形闪烁体探测器中从闪烁位置到探测表面光传输的分析描述。采用万花筒光线追踪方法再现探测表面能量沉积（光收集）的平均时间轮廓。在尺寸为$1.5×1.5×30$cm³的PWO晶体案例中展示了该模型的适用性，结果与蒙特卡洛模拟吻合良好。该模型实现只需几十毫秒，适用于探测器实时校准，而蒙特卡洛模拟需数小时。还强调万花筒光线追踪用于蒙特卡洛模拟时，在镜面反射器情况下可大幅加速模拟。
英文摘要
Strip scintillator detectors are used nowadays in many fields of applied physics, particularly in medicine, civil engineering, mapping of underground resources, and security. In this work we provide an analytical description of light transport in a cuboid-shaped strip scintillator detector from the scintillation location to the detecting surface. We use kaleidoscopic-ray-tracing approach to reproduce the average time profile of the energy deposition (light collection) in the detecting surface. We demonstrate the applicability of the model on the case of PWO crystal of $1.5\times 1.5 \times 30$ cm$^3$ size. We show that the results achieved in the model are in good agreement with Monte Carlo (MC) simulation. Notably, the developed model requires dozens of milliseconds to be implemented, thus, it is applicable for real-time calibration of the detector, while the MC simulation takes hours. Also, we highlight that the kaleidoscopic-ray-tracing itself being used in MC simulations can highly speed them up in the case of specular reflectors.
