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arXiv 2411.04429physics.ins-dethep-ex
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优化两级放大快速定时微网气体探测器中的氖基混合气体

Optimizing Neon-based Gas Mixtures for Two-stage Amplification Fast-timing Micromegas Detectors

Yue Meng, Xu Wang, Jianbei Liu, Ming Shao, Zhiyong Zhang, Yi Zhou

AI总结:

本文通过模拟与实验研究氖基混合气体对两级放大快速定时微网探测器性能的影响,发现提高氖浓度可改善增益均匀性,为优化大面积PICOSEC MM探测器提供参考。

摘要:

工作气体组分对气体探测器性能有显著影响。具有两级放大的快速定时微网探测器在放大规模时容易出现均匀性显著恶化的问题。本文基于Garfield++开展了一项模拟研究,旨在通过探索不同混合气体来提升此类探测器的性能。模拟研究考察了各种气体成分的特性及其对探测器性能(包括增益均匀性和时间分辨率)的影响。使用多通道PICOSEC微网(MM)原型在不同混合气体下进行了测试,评估了探测器的增益均匀性和单光子时间分辨率。实验结果与模拟发现一致。模拟和实验结果均表明,较高的氖浓度可改善探测器的增益均匀性,同时混合气体对时间分辨率的影响也应被视为关键性能指标。本文的研究为大面积PICOSEC MM探测器改善均匀性及优化整体性能提供了宝贵见解。

英文摘要:

Working gas components significantly impact the performance of gaseous detectors. A fast-timing Micromegas detector with two-stage amplification is prone to notable deterioration of uniformity when scaled up. This paper presents a simulation study based on Garfield++ that aims to enhance the performance of such detectors by exploring different gas mixtures. The properties of various gas compositions and their impact on detector performance including gain uniformity and time resolution were investigated in the simulation study. The gain uniformity and single-photon time resolution of the detector were evaluated in tests using a multi-channel PICOSEC Micromegas (MM) prototype with different gas mixtures. The experimental results are consistent with the findings of the simulation. Both simulation and experimental results indicate that a higher concentration of neon improves the detector's gain uniformity, while the impact of gas mixtures on time resolution should also be considered as a critical performance indicator. The study presented in this paper offers valuable insights for improving uniformity in large-area PICOSEC MM detectors and optimizing overall performance.

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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