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arXiv 0810.5590physics.ins-dethep-ex
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皮秒级定时测量的信号处理

Signal Processing for Pico-second Resolution Timing Measurements

Jean-Francois Genat, Gary Varner, Fukun Tang, Henry Frisch

摘要:

大面积均匀的光探测器的发展,直接切伦科夫光和二次电子的亚毫米路径长度打开了大的相对论粒子的飞行时间系统的可能性,在皮秒范围内的分辨率。现代ASIC技术允许快速多通道前端电子设备能够直接与光电探测器集成,分辨率为亚皮秒。然而,实现皮秒范围内的分辨率需要对信号生成过程有精确的了解,以便了解脉冲波形、信号动态和由检测器本身引起的噪声,以及由处理电子设备增加的噪声。利用微通道板光电倍增管等快速光电探测器的实测参数,对前沿鉴别器、恒分数鉴别器、多阈值鉴别器和脉冲波形采样四种信号处理技术的时间分辨率进行了仿真和比较。

英文摘要:

The development of large-area homogeneous photo-detectors with sub-millimeter path lengths for direct Cherenkov light and for secondary-electrons opens the possibility of large time-of-flight systems for relativistic particles with resolutions in the pico-second range. Modern ASIC techniques allow fast multi-channel front-end electronics capable of sub-pico-second resolution directly integrated with the photo-detectors. However, achieving resolution in the pico-second range requires a precise knowledge of the signal generation process in order to understand the pulse waveform, the signal dynamics, and the noise induced by the detector itself, as well as the noise added by the processing electronics. Using the parameters measured for fast photo-detectors such as micro-channel plates photo-multipliers, we have simulated and compared the time-resolutions for four signal processing techniques: leading edge discriminators, constant fraction discriminators, multiple-threshold discriminators and pulse waveform sampling.

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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