Characterization of HZC XP1805 photomultiplier tube for LHAASO-WCDA with a high dynamic range base-猫眼课题宝

用于 LHAASO-WCDA 的具有高动态范围基础的 HZC XP1805 光电倍增管的表征

DOI：

10.1088/1748-0221/11/10/p10012

发表时间：

2016-10

期刊：

Journal of Instrumentation

影响因子：

1.3

通讯作者：

中科院分区：

工程技术4区

文献类型：

作者：

Zhang, Y.;Shao, M.;Sun, Y.;Zhou, Y.

用于大型高空空气簇射观测站(LHAASO)的水切伦科夫探测器阵列(WCDA)将使用3000个大尺寸半球光电倍增管(PMT)来收集簇射粒子穿过水面产生的切伦科夫光。这种光电倍增管不仅要求具有良好的单光电子分辨率(SPE)和较小的渡越时间扩展(TTS)，而且还需要高达4000个光电子的良好线性。海南展创光电科技有限公司生产的XP1805光电倍增管，中国，采用从法国Photonis引进的生产线，是LHAASO-WCDA读出的很好的候选者。介绍了一种基于XP1805的高动态范围基座的设计。测量了XP1805在高动态范围基座下的SPE响应和非线性。结果表明，HZC XP1805具有良好的性能，在PPT增益为3×106，激发光脉冲宽度为6.4 ns时，其峰谷比大于2，TTS在3 ns左右，动态范围(非线性在5%以内)分别超过1500个和5300个光电子作为阳极和6DYNODE输出。

The Water Cherenkov Detector Array (WCDA) for the Large High Altitude Air Shower Observatory (LHAASO) will employ 3000 large-sized hemisphere photomultiplier tubes (PMTs) to collect the Cherenkov light produced by shower particles crossing water. The PMTs require not only good single photoelectron (SPE) resolution and small transit time spread (TTS), but also good linearity up to 4000 photoelectrons. XP1805 PMT produced by Hainan Zhanchuang Photonics Technology Co., Ltd (HZC), China, with a production line imported from Photonis (France) is a good candidate for LHAASO-WCDA readout. In this paper, the design of a high dynamic range base for XP1805 is presented. The SPE responses and non-linearity of XP1805 with the high dynamic range base are measured. These results show that HZC XP1805 with the designed base is well qualified for LHAASO-WCDA, with peak-to-valley ratio greater than 2, TTS around 3 ns, dynamic range (non-linearity within 5%) over 1500 and 5300 photoelectrons for anode and the 6th dynode output, respectively, at PMT gain of 3 × 106 with the inciting light pulse width of 6.4 ns.