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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 tube (Si PM), as a new photoelectric conversion device, has the advantages of low operating voltage, low power consumption, high integration and anti-magnetic field compared with the traditional photomultiplier tube (PMT). Multi-pixel photon counter (MPPC) As one of Si PM, this paper studies the basic performance of a 4 × 4 channel MPPC (Hamamatsu, C11206-0404FB (X)). As a multi-channel photodetection device, the relationship between relative gain and bias voltage and operating temperature is studied firstly. The stability of relative gain (charge-spectrum peak) is kept by adding temperature compensation. The relative gain Of the difference, and then by adjusting the bias voltage of each channel to achieve the relative gain of each channel consistency. With 4x4 channel gain consistency and stability satisfied, this MPPC is well suited for use in the readout circuitry of scintillator 2D position-resolving detectors.