论文标题
沙丘光子检测系统的低温SIPM阵列
Cryogenic SiPM arrays for the DUNE photon detection system
论文作者
论文摘要
在本文中，我们报告了为沙丘光子检测系统上为研发开发的SIPM瓷砖的表征。这些瓷砖是由Fondazione Bruno Kessler（FBK）使用NUV-HD-SF sipms生产的。特殊重点是传感器的冷冻可靠性，即在房间和77K温度下热循环后电气和机械性能的稳定性。表征包括确定I-V曲线，高灵敏度测量在不同的过电压下对暗计数的测量以及相关的噪声。单个P.E.使用专用的冷放大器在77K放大后，测量灵敏度是连接到单个电子通道的传感器数量的函数。
In this paper we report on the characterization of SiPM tiles developed for the R & D on the DUNE Photon Detection System. The tiles were produced by Fondazione Bruno Kessler (FBK) employing NUV-HD-SF SiPMs. Special emphasis is given on cryo-reliability of the sensors, i.e. the stability of electric and mechanical properties after thermal cycles at room and 77K temperature. The characterization includes the determination of the I-V curve, a high sensitivity measurement of Dark Count Rate at different overvoltages, and correlated noise. The single p.e. sensitivity is measured as a function of the number of sensors connected to a single electronic channel, after amplification at 77K using a dedicated cold amplifier.
