Belle II气凝胶RICH计数器HAPD的性能评价

Proceedings of the 5th International Workshop on New Photon-Detectors (PD18) Pub Date : 2019-11-13 DOI:10.7566/jpscp.27.012016

M. Yonenaga, I. Adachi, Leonid Burmsistrov, F. Diberder, R. Dolenec, K. Hataya, T. Iijima, S. Kakimoto, H. Kakuno, H. Kawai, T. Kawasaki, H. Kindo, T. Kohriki, T. Konno, S. Korpar, P. Križan, T. Kumita, Y. Lai, M. Machida, M. Mrvar, S. Nishida, K. Noguchi, K. Ogawa, S. Ogawa, R. Pestotnik, L. Šantelj, M. Shoji, T. Sumiyoshi, M. Tabata, S. Tamechika, M. Yoshizawa, Y. Yusa

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引用次数: 0

摘要

混合雪崩光电探测器(HAPD)被用作Belle II的粒子识别(cid:12)阳离子装置气凝胶环成像切伦科夫计数器(ARICH)的光子探测器。ARICH测量在硅胶气凝胶散热器中发射的光子的切伦科夫角，因此HAPD模块(HAPD和前端电子板的组合)需要高光子检测效率。我们通过测量HAPD模块的噪声水平、偏置值、脉冲高度、温度依赖性和波束调试期间的性能变化来评估HAPD模块的性能。本文描述了HAPD的性能评估结果，并表明它完全(cid:12)满足ARICH要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance Evaluation of the HAPD in the Belle II Aerogel RICH Counter

The Hybrid Avalanche Photo Detector (HAPD) is used as a photon detector for Aerogel Ring Imaging Cherenkov counter (ARICH), a particle identi(cid:12)cation device at Belle II. ARICH measures Cherenkov angles of photons emitted in silica aerogel radiators, hence a high photon detection eﬃciency is required by the HAPD module, a combination of HAPD and front-end electronics board. We evaluate the performance of the HAPD modules by measuring the noise level, the oﬀset value, the pulse height, temperature dependency and the variation of performance in the beam commissioning period. This article describes the results of performance evaluation of the HAPD and shows that it ful(cid:12)lls the requirements of ARICH.

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Proceedings of the 5th International Workshop on New Photon-Detectors (PD18)

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