基于温度补偿的多通道MPPC增益稳定性及一致性研究  

4 × 4multi-channel MPPC Gain Stability and Uniformity Study Based on the Temperature Compensation

作　　者：方灿[1] 衡月昆[2,3] 梁静静[1] 阮向东[1] 赵子荀 何舒杨 陈晓辉[4] 雷祥翠 吴智[2,3] 王小状 蔡力[1] 徐美杭[2,3] 罗凤娇[2,3] 刘术林[2,3] 钱森[2,3] 闫保军 杨玉真[2] 杨露萍[2] 

机构地区：[1]广西大学,南宁530004 [2]中国科学院高能物理研究所,北京100049 [3]核探测与核电子学国家重点实验室,北京100049 [4]中国人民大学附属中学,北京100080

出　　处：《核电子学与探测技术》2015年第6期527-530,534,共5页Nuclear Electronics & Detection Technology

摘　　要：硅光电倍增管(Si PM)作为一种新型光电转换器件,与传统的光电倍增管(PMT)相比有工作电压低、功耗小、集成度高、抗磁场等优点。多像素光子计数器(MPPC)作为Si PM中的一种,本文研究了一种4×4通道MPPC(Hamamatsu,C11206-0404FB(X))的基本性能。作为多通道的光电探测器件,首先研究了相对增益随偏压、工作温度的变化关系,并通过加入温度补偿的办法保持了相对增益(电荷谱峰位)的稳定性;研究了各通道相对增益的差异性,然后通过调整各通道偏置电压实现了各个通道相对增益的一致性。在4×4各个通道增益一致性和稳定性得到满足的情况下,此种MPPC可以很好地使用在闪烁体二维位置分辨探测器的读出电路中。Silicon photomultiplier（ Si PM） as a new type of photoelectric conversion device,compared with the conventional photomultiplier tube（ PMT）,has some advantages,such as low operating voltage,low power consumption,compactness,magnetic toleration,etc. Multi-pixels photon counter（ MPPC） is a kind of Si PMand the 4 × 4 MPPC array（ Hamamatsu,C11206-0404 FB（ X）） performance are studied. The relative gain is analysed as a function of voltage and temperature,and its stability has been studied with temperature compensation. The differences of relative gains of 4 × 4 channels are compared,and the bias voltage of each channel is adjusted to realize the gain＇s consistency of the 4 × 4 channels. The consistency and stability can be realized and so the multi-channel MPPC can be a good device to be used in two dimensionalreadout of some scintillation detector.

关 键 词：多像素光子计数器 温度补偿 增益稳定性 增益一致性 

分 类 号：O571[理学—粒子物理与原子核物理]