Compact 16-channel integrated charge-sensitive preamplifier module for silicon strip detectors
Compact 16-channel integrated charge-sensitive preamplifier module for silicon strip detectors
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DOI：
10.1007/s41365-020-00755-0
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发表时间：
2020-05
影响因子：
2.8
通讯作者：
Dong-Xi Wang;Chengjian Lin;Lei Yang;N. Ma;Lijie Sun;F. Yang;H. Jia;F. Zhong;P. Wen
中科院分区：
文献类型：
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作者：
Dong-Xi Wang;Chengjian Lin;Lei Yang;N. Ma;Lijie Sun;F. Yang;H. Jia;F. Zhong;P. Wen
本研究开发了一种小型的16通道集成电荷灵敏探测器，称为智能电荷灵敏探测器（SPA），以支持现代核物理实验中使用的大规模探测器阵列。两种类型的SPA，即SPA 02和SPA 03（与外部场效应晶体管），已被制造，以匹配硅探测器与小和大电容，分别。SPA的特性包括脉冲上升时间通常小于6 ns的快速响应和零输入电容时1.5 keV的低等效噪声。能量灵敏度和脉冲衰减时间可以很容易地通过改变反馈电容和电阻在各种应用中进行调整。使用小型Si-PIN探测器对Cm产生的5.803-MeV α粒子实现了24.4 keV的良好能量分辨率;对于在α源测试中的硅条探测器，实现了0.6-0.8%的典型能量分辨率。该集成SPA已应用于数百个通道的硅条探测器的多项实验中，取得了良好的性能。
In this study, a compact 16-channel integrated charge-sensitive preamplifier named the smart preamplifier (SPA) was developed to support the large-scale detector array used in modern nuclear physics experiments. Two types of SPA, namely SPA02 and SPA03 (with external field effect transistor), have been manufactured to match silicon detectors with small and large capacitances, respectively. The characteristics of the SPA include fast response of typically less than 6 ns for pulse rising time and low equivalent noise of 1.5 keV at zero input capacitance. The energy sensitivity and pulse decay time can be easily adjusted by changing the feedback capacitanceand resistancein various applications. A good energy resolution of 24.4 keV for 5.803-MeV alpha particles fromCm was achieved using a small-sized Si-PIN detector; for the silicon strip detectors in the test with the alpha source, a typical energy resolution of 0.6–0.8% was achieved. The integrated SPA has been employed in several experiments of silicon strip detectors with hundreds of channels, and a good performance has been realized.