The PICOSEC Micromegas(MM)is a precise timing gaseous detector based on a Cherenkov radiator coupled with a semi-transparent photocathode and an MM amplifying structure.It features a two-stage amplification process th...The PICOSEC Micromegas(MM)is a precise timing gaseous detector based on a Cherenkov radiator coupled with a semi-transparent photocathode and an MM amplifying structure.It features a two-stage amplification process that leads to a significant deterioration of non-uniformity when scaling up to larger areas.Since the performance of gaseous detectors is highly dependent on the choice of working gas,optimizing the gas mixture offers a promising solution to improve the uniformity performance.This paper addresses these challenges through a combined approach of simulation based on Garfield++and experimental studies.The simulation investigates the properties of different mixing fractions of gas mixtures and their impact on detector performance,including gain uniformity and time resolution.To verify the simulation results,experimental tests were conducted using a multi-channel PICOSEC MM prototype with different gas mixtures.The experimental results are consistent with the findings of the simulation,indicating that a higher concentration of neon significantly improves the detector’s gain uniformity.Furthermore,the influence of gas mixtures on time resolution was explored 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.展开更多
TN929.1 99021254激光对潜通信的信号检测方法分析=Analysis onthe signal detection methods of SLC[刊,中]/杜竹峰,黄铁侠,卢益民(华中理工大学.湖北,武汉(430074))∥激光与红外.—1998,28(3).—156-159对激光对潜通信系统的信号检测...TN929.1 99021254激光对潜通信的信号检测方法分析=Analysis onthe signal detection methods of SLC[刊,中]/杜竹峰,黄铁侠,卢益民(华中理工大学.湖北,武汉(430074))∥激光与红外.—1998,28(3).—156-159对激光对潜通信系统的信号检测方法作了较详细的分析与比较。根据激光对潜通信系统的信道特性和探测器特性,推导并简化了输出信噪比公式,研究了信噪比对检测系统性能的影响。图2表1参8(李瑞琴)展开更多
基金supported by the National Natural Science Foundation of China(12125505)concept by the PICOSEC collaboration,which provided a foundational framework for this research.We are grateful to the PICOSEC collaboration for their help and support during this research.
文摘The PICOSEC Micromegas(MM)is a precise timing gaseous detector based on a Cherenkov radiator coupled with a semi-transparent photocathode and an MM amplifying structure.It features a two-stage amplification process that leads to a significant deterioration of non-uniformity when scaling up to larger areas.Since the performance of gaseous detectors is highly dependent on the choice of working gas,optimizing the gas mixture offers a promising solution to improve the uniformity performance.This paper addresses these challenges through a combined approach of simulation based on Garfield++and experimental studies.The simulation investigates the properties of different mixing fractions of gas mixtures and their impact on detector performance,including gain uniformity and time resolution.To verify the simulation results,experimental tests were conducted using a multi-channel PICOSEC MM prototype with different gas mixtures.The experimental results are consistent with the findings of the simulation,indicating that a higher concentration of neon significantly improves the detector’s gain uniformity.Furthermore,the influence of gas mixtures on time resolution was explored 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.
文摘TN929.1 99021254激光对潜通信的信号检测方法分析=Analysis onthe signal detection methods of SLC[刊,中]/杜竹峰,黄铁侠,卢益民(华中理工大学.湖北,武汉(430074))∥激光与红外.—1998,28(3).—156-159对激光对潜通信系统的信号检测方法作了较详细的分析与比较。根据激光对潜通信系统的信道特性和探测器特性,推导并简化了输出信噪比公式,研究了信噪比对检测系统性能的影响。图2表1参8(李瑞琴)
