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arXiv physics/0312017physics.ins-det
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单光子灵敏度多像素光子传感器的研制

Development of a multi-pixel photon sensor with single-photon sensitivity

Motohiro Suyama, Atsuhito Fukasawa, Junji Haba, Toru Iijima, Seigi Iwata, Makoto Sakuda, Takayuki Sumiyoshi, Fumihiko Takasaki, Manobu Tanaka, Toru Tsuboyama, Yoshikazu Yamada

摘要:

基于光电阴极和多像素雪崩二极管(MP-AD)组成的混合光电探测器(HPD)技术,研制了一种具有单光子灵敏度的多像素光子传感器。所开发的HPD具有接近聚焦结构,其中光电阴极和MP-AD以2.5 mm的小间隙彼此面对。MP-AD具有由8x8像素组成的16x16 mm 2的有效面积,是专门为HPD设计的。HPD的增益达到5 × 10^4,足以探测到时间分辨率优于100 ps的单光子。由于HPD的低噪声特性,可以在脉冲高度谱中清楚地识别多达四个的光电子作为不同的峰。实验还表明,HPD在高达1.5 T的磁场中仍能工作

英文摘要:

A multi-pixel photon sensor with single-photon sensitivity has been developed, based on a technology of a hybrid photo-detector (HPD) consisting of a photocathode and a multi-pixel avalanche diode (MP-AD). The developed HPD has a proximity focused structure, where a photocathode and an MP-AD are facing each other with a small gap of 2.5 mm. The MP-AD, which has an effective area of 16x16 mm2 composed of 8x8 pixels, has been specially designed for the HPD. The gain of the HPD reaches 5x10^4, sufficiently high to detect single photons with a timing resolution better than 100 ps. Number of photoelectrons up to four can be clearly identified in a pulse-height spectrum as distinct peaks, thanks to the low noise characteristics of the HPD. It is also demonstrated that the HPD can be operated with good performance in a magnetic field as high as 1.5 T

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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