arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2407.19720physics.ins-det
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具有RPC结构的高速率和高定时光电探测器原型

A high rate and high timing photoelectric detector prototype with RPC structure

Yiding Zhao, D. Hu, M. Shao, Y. Zhou, S. Lv, Xiangqi Tian, Anqi Wang, Xueshen Lin, Hao Pang, Y. Suna

AI总结:

为满足高能物理实验需求,开发了具有RPC结构的高速率气体光电探测器原型,采用低电阻率浮法玻璃,在MRPC气体中实现了20.3 ps的单光电子时间分辨率,可用于高精度时间测量及寻找环保型MRPC气体。

摘要:

为满足未来高能物理实验对高计数率和时间分辨率的需求,开发了一种具有RPC结构的气体光电探测器原型。使用Garfield++模拟了探测器的性能,并用紫外激光测试了不同混合气体的单光电子性能。探测器采用低电阻率(约1.4·10^10 Ω·cm)浮法玻璃,使其速率能力显著高于普通浮法玻璃(10^12~10^14 Ω·cm)。激光测试结果表明,在MRPC气体(R134a/iC4H10/SF6(85/10/5))中,单光电子时间分辨率最佳达到20.3 ps,气体增益为7·10^6。增加iC4H10的比例可有效降低光子反馈概率,且不改变时间分辨率和最大增益。该探测器除应用于高精度时间测量场景(如T0、TOF)外,还可定量测试不同气体的单光电子性能,将用于寻找环保型MRPC气体。

英文摘要:

To meet the need for a high counting rate and high time resolution in future high-energy physics experiments, a prototype of a gas photodetector with an RPC structure was developed. Garfield++ simulated the detector's performance, and the single photoelectron performance of different mixed gases was tested with an ultraviolet laser. The detector uses a low resistivity ($\sim1.4\cdot 10^{10} Ω\cdot cm$) float glass so that its rate capability is significantly higher than that of ordinary float glass($10^{12}\sim10^{14} Ω\cdot cm$), the laser test results show that in MRPC gas($R134a/iC_{4}H_{10}/SF_{6}(85/10/5)$), the single photoelectron time resolution is best to reach 20.3 ps at a gas gain of $7\cdot 10^{6}$. Increasing the proportion of $iC_{4}H_{10}$ can effectively reduce the probability of photon feedback, without changing the time resolution and maximum gain. In addition to being applied to high-precision time measurement scenarios (eg:T0, TOF), the detector can also quantitatively test the single photoelectron performance of different gases and will be used to find eco-friendly MRPC gases.

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。

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