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Pulse shape analysis of signals from SiPM-based CsI(Tl) detectors for low-energy protons: Saturation correction and particle identification
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment ( IF 1.5 ) Pub Date : 2020-12-18 , DOI: 10.1016/j.nima.2020.164967
T. Teranishi , Y. Ueno , M. Osada , S. Oka , K. Iribe , H. Yoshida , H. Sakai , T. Kubo

CsI(Tl) scintillation detectors based on a silicon photomultiplier (SiPM) were tested for low-energy proton detection. Pulse shape analysis of the SiPM signals with a transimpedance amplifier was conducted to investigate the saturation effect due to the recovery time of a pixel and to evaluate particle identification capability. To recover energy linearity, a saturation correction method based on a non-paralyzable dead time model was proposed. The setup using the SiPM with a 25 μm pixel pitch well separated protons and deuterons at energies from 3 to 12 MeV. Additionally, a readout circuit without an amplifier was tested to investigate another type of saturation due to the voltage drop effect.



中文翻译:

来自基于SiPM的CsI(Tl)检测器的信号的脉冲形状分析,用于低能质子:饱和度校正和粒子识别

测试了基于硅光电倍增管(SiPM)的CsI(Tl)闪烁探测器的低能质子探测。使用跨阻放大器对SiPM信号进行脉冲形状分析,以研究由于像素恢复时间而引起的饱和效应并评估颗粒识别能力。为了恢复能量线性,提出了一种基于不可瘫死时间模型的饱和度校正方法。使用25的SiPM进行设置μm像素间距在3到12 MeV的能量下能很好地分离质子和氘核。此外,还测试了没有放大器的读出电路,以研究由于电压降效应而引起的另一种类型的饱和。

更新日期:2020-12-24
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