论文标题
GrandProto35实验的闪烁检测器的光电倍增管的表征
Characterization of the photomultiplier tubes for the scintillation detectors of GRANDProto35 experiment
论文作者
论文摘要
GrandProto35是大项目的第一阶段。它将由35个无线电天线和24个闪烁探测器组成，无线电和闪烁的子阵列独立触发。如果所选的无线电候选者确实是空气淋浴事件，则闪烁检测器阵列可以通过离线处理进行跨检查，从而定量确定无线电阵列的检测效率。 Hamamatsu R7725是闪烁探测器光电倍增器的候选者。 PMT的特征将直接影响闪烁检测器的时间和能量分辨率，动态检测范围。为了覆盖较大的动态范围，电压分离器电路具有为PMT设计的Dual-ReadOutWas。在本文中，将描述有关系统设置，测量方法和结果的详细信息。对PMT的一些特征进行了校准和研究：囊泡增益，单光电（SPE）能量分辨率，传输时间扩散（TTS），线性动态范围和PMT增益的温度依赖性。
GRANDProto35 is the first stage of the GRAND project. It will be composed of an array of 35 radio antennas and 24 scintillation detectors, the radio and scintillating subarrays being triggered independently. The scintillation detector array allow to cross check,through an offline treatment, if the selected radio candidates are indeed air shower events and thus quantitatively determine the detection efficiency of the radio array. The Hamamatsu R7725 is candidate for the scintillation detector photomultiplier. The characteristics of the PMT will directly affects the time and energy resolution, dynamic detection range of a scintillation detector.In order to cover the large dynamic range, voltage divider circuit featured with dual-readoutwas designed for the PMT. In this paper,details about the system setup, measurement method and results will be described. Some characteristics of PMT were calibrated and researched: the absolution gain, single photoelectron (SPE) energy resolution, transit time spread (TTS), linear dynamic range and temperature dependence of PMT gain.
