用于荧光和切伦科夫辐射研究的UV光簇射模拟器
UV Light Shower Simulator for Fluorescence and Cerenkov Radiation Studies
摘要：
所有观测阵雨光的实验都使用装有像素化光电探测器的望远镜。在各种情况下（背景光、簇射能量、轨道接近度.）是强制性的，但永远不要进入探测器的细节，如脉冲形状，死区时间，或电荷空间效应，最终负责数据质量。正在建造一种装置，其中每个像素通过石英纤维接收来自单个370 nm UV LED的光。LED通过DAC接收电压，DAC从簇射加噪声发生器代码获得其输入（哪个像素、在什么时间、哪个幅度）。簇射的典型时间常数是一个$/mu$ s（对于光为300 m），脉冲是一个$/mu$ s宽。这与光探测器的固有时间常数（大约10 ns）相比相当长，因此，这些光探测器看到“恒定光”每隔$/mu$ s改变。这是重要的加载效果，不包括在MC代码可以观察到。光纤通过漫射器照亮像素，并且每个光纤仅照亮一个像素。配备的像素数量是这样的，它可以形成一个完整的簇射（比完整的焦面少得多）。最后，该设备还可以用于校准像素。
英文摘要：
All experiments observing showers light use telescopes equipped with pixellised photodetectors. Monte-Carlo (MC) simulations of the apparatus operation in various situations (background light, shower energy, proximity of tracks...) are mandatory, but never enter into detector details like pulse shape, dead-time, or charge space effects which are finally responsible for the data quality. An apparatus where each pixel receives light from individual 370 nm UV LEDs through silica fibers is being built. The LEDs receive voltage through DACs, which get their input (which pixel, at what time, which amplitude) from a shower plus noise generator code. The typical time constant of a shower being one $/mu$s (300 m for light), the pulses are one $/mu$s wide. This is rather long compared to the intrinsic time constant (around 10 ns) of the light detectors, hence, these see "constant light" changing every $/mu$s. This is where important loading effects which are not included in MC code can be observed. The fibers illuminate the pixels through a diffuser, and each fiber illuminates only one pixel. The number of equipped pixels is such that it englobes a full shower (much less than the full focal surface). Finally, this equipment can be used also to calibrate the pixels.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
