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Readout device and readout method for measuring energy and time of flight using a silicon photomultiplier tube

机译:使用硅光电倍增管测量能量和飞行时间的读出装置和读出方法

摘要

This invention is about a readout apparatus and method for time-of-flight and energy measurements with silicon photomultipliers (SIPM) coupled to a scintillator. The timing measurement can be as accurate as 50 ps or below, after calibration. The energy is measured using a time-over-threshold technique, and the energy resolution is only constrained by the scintillation statistics. In order to achieve low power of 10 mW per channel, a low impedance input amplifier and analogue time-to-digital converters (TDCs) based on time interpolation are used. The readout circuit can be triggered by a single photoelectron (p.e.) with a signal-to-noise ratio (SNR) above 20 dB. The said readout circuit operates with S.iPMs of different gain, polarity and matrix size. The preferred embodiment of the readout apparatus is a multi-channel application specific integrated circuit (ASIC) with 64 channels.
机译:本发明涉及一种用于通过耦合到闪烁体的硅光电倍增管(SIPM)进行飞行时间和能量测量的读出设备和方法。校准后,时序测量的精度可以达到50 ps或更低。使用阈值以上时间技术测量能量,并且能量分辨率仅受闪烁统计数据的约束。为了实现每通道10 mW的低功率,使用了低阻抗输入放大器和基于时间插值的模拟时间数字转换器(TDC)。读出电路可由具有20 dB以上信噪比(SNR)的单个光电子(p.e.)触发。所述读出电路以不同增益,极性和矩阵大小的S.iPM工作。读出设备的优选实施例是具有64个通道的多通道专用集成电路(ASIC)。

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