Radiation damage to MPPCs by irradiation with protons
Radiation damage to MPPCs by irradiation with protons
复制标题
质子辐照对 MPPC 的辐射损伤
DOI：
10.22323/1.051.0033
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
M. Kuze
中科院分区：
文献类型：
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作者：
T. Matsumura;T. Shinkawa;T. Hirai;K. Miyabayashi;T. Hiraiwa;A. Okamura;T. Tsunemi;K. Horie;S. Shimizu;M. Kuze
t.日本国防科学院应用物理学系，日本横须贺239 - 0811，T. Hirai，K.奈良女子大学物理系，日本奈良630 - 8506; Hiraiwa，A. Okamura，T.京都大学物理系，日本京都606 - 8502; Horie，S.大坂大学清水物理系，日本丰中560 - 0043。Kuze，T.东京工业大学松原物理系，东京152 - 8551;中平岛中村，高能加速器研究机构，日本筑波305 - 0801;中川岛日本东京大学西藤核能专业学校，东海319 - 1188。Sawada，M.大坂大学核物理研究中心，日本，茨木567 - 0047。Tsunoda物理系，东京理科大学，东京162 - 8601，日本评价了质子和中子辐照引起的多像素光子计数器（MPPC）的辐射损伤。在质子和中子辐照后，观察到漏电流的增加，这是硅器件上的辐射损伤的指示。由于损坏，暗化率显著增加，并且由于噪声堆积，该效应导致光子计数能力的损失。从漏电流测量中发现，10 9n/mm 2中子辐照对MPPC的损伤程度与2 0戈伊质子辐照的损伤程度基本相同。新型光子探测器国际研讨会PD 07 2007年6月27 - 29日科比大学，科比，日本
T. Matsumura∗† , T.Shinkawa Department of Applied Physics, National Defense Academy in Japan, Yokosuka 239-0811, Japan T. Hirai, K. Miyabayashi Department of Physics, Nara Women’s University, Nara 630-8506, Japan T. Hiraiwa, A. Okamura, T. Tsunemi Department of Physics, Kyoto University, Kyoto 606-8502, Japan K. Horie, S. Shimizu Department of Physics, Osaka University, Toyonaka 560-0043, Japan M. Kuze, T. Matsubara Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan T. Nakadaira, I. Nakamura IPNS, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan T. Nakagawa, I. Saitoh Nuclear Professional School, The University of Tokyo, Tokai 319-1188, Japan T. Sawada, M. Yosoi Research Center for Nuclear Physics, Osaka University, Ibaraki 567-0047, Japan S. Tsunoda Department of Physics, Tokyo University of Science, Tokyo 162-8601, Japan Radiation damage of Multi-Pixel Photon Counters (MPPCs) caused by proton and neutron irradiation was evaluated. An increase of the leakage current, which is an indication of radiation damage on silicon devices, was observed after both the proton and neutron irradiation. Darknoise rates significantly increased due to the damage and this effect resulted in the loss of the photon counting capability because of the noise pile-up. From the leakage current measurement we found the damage level of the MPPCs caused by the neutron influence of 10 9 n/mm2 is almost same level as the case of 20 Gy proton irradiation. International workshop on new photon-detectors PD07 June 27-29 2007 Kobe University, Kobe, Japan