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arXiv 1906.07237physics.ins-dethep-ex
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滨松多像素光子计数器的辐射测试

Radiation Tests of Hamamatsu Multi-Pixel Photon Counters

G. Blazey, J. Colston, A. Dyshkant, K. Francis, J. Kalnins, S. A. Uzunyan, V. Zutshi, S. Hansen, P. Rubinov, E. C. Dukes, Y. Oksuzian, M. Pankuch

摘要:

给出了滨松2.0 x 2.0~ mm 2硅通孔(S13360- 2050 VE)多像素光子计数器或MPPC [1]的辐射测试结果。不同的8个MPPC组暴露于4个不同的1~MeV中子当量剂量的200 MeV质子。在不同的偏置过电压,光电子阈值,和LED照明水平的击穿电压,增益和噪声率进行了测量之前和之后的照射。没有观察到击穿电压、增益和响应的性能显著恶化。噪声率显着增加与照射。这些研究是在费米国家加速器实验室的Mu 2 e实验的宇宙射线否决探测器的MPPC要求的背景下进行的。

英文摘要:

Results of radiation tests of Hamamatsu 2.0 x 2.0~mm2 through-silicon-via (S13360-2050VE) multi-pixel photon counters, or MPPCs [1], are presented. Distinct sets of eight MPPCs were exposed to four different 1~MeV neutron equivalent doses of 200 MeV protons. Measurements of the breakdown voltage, gain and noise rates at different bias overvoltages, photoelectron thresholds, and LED illumination levels were taken before and after irradiation. No significant deterioration in performance was observed for breakdown voltage, gain, and response. Noise rates increased significantly with irradiation. These studies were undertaken in the context of MPPC requirements for the Cosmic Ray Veto detector of the Mu2e experiment at the Fermi National Accelerator Laboratory.

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