用于未来EIC中基于MPGD的单光子探测器的纳米金刚石光电阴极
Nanodiamond photocathodes for MPGD-based single photon detectors at future EIC
AI总结：
针对未来EIC中RICH探测器在远紫外光子探测面临的CsI光电阴极易损及效率退化问题，研究探索了氢化纳米金刚石粉末作为新型光电阴极与THGEM探测器耦合的初步性能。
摘要：
在未来电子离子对撞机（EIC）上，利用现有技术设计用于识别高动量粒子的环成像切伦科夫（RICH）探测器极具挑战性。紧凑的对撞机装置要求建造具有短辐射体长度的RICH，从而限制了生成的光子数量。可以通过选择远紫外区域来增加探测到的光子数量。由于标准熔融石英窗在165 nm以下不透明，无窗RICH可能是一种可行方案。CsI是广泛用于远紫外范围光子探测的光电阴极（PC）。由于其吸湿性，处理起来非常棘手。此外，其量子效率（QE）在高强度离子流中会退化。这些是寻求在远紫外区域具有灵敏度的新型PC的关键原因。将氢化纳米金刚石粉末层作为替代PC材料的最新进展，以及其与基于厚气态电子倍增器（THGEM）的探测器耦合时的性能，是当前研发的对象。我们在此报告这些研究初始阶段的一些初步结果。
英文摘要：
The design of a Ring Imaging CHerenkov (RICH) detector for the identification of high momentum particles at the future Electron Ion Collider (EIC) is extremely challenging by using current technology. Compact collider setups impose to construct RICH with short radiator length, hence limiting the number of generated photons. The number of detected photons can be increased by selecting the far UV region. As standard fused-silica windows is opaque below 165 nm, a windowless RICH can be a possible approach. CsI is widely used photocathode (PC) for photon detection in the far UV range. Due to its hygroscopic nature it is very delicate to handle. In addition, its Quantum Efficiency (QE) degrades in high intensity ion fluxes. These are the key reasons to quest for novel PC with sensitivity in the far UV region. Recent development of layers of hydrogenated nanodiamond powders as an alternative PC material and their performance, when coupled to the THick Gaseous Electron Multipliers (THGEM)-based detectors, are the objects of an ongoing R\&D. We report here some preliminary results on the initial phase of these studies.
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。
