# Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2020, Vol. 31 ›› Issue (5): 48

• NUCLEAR ELECTRONICS AND INSTRUMENTATION •

### Compact 16-channel integrated charge-sensitive preamplifier module for silicon strip detectors

Dong-Xi Wang, Cheng-Jian Lin, Lei Yang, Nan-Ru Ma, Li-Jie Sun, Feng Yang, Hui-Ming Jia, Fu-Peng Zhong, Pei-Wei Wen

1. Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
• Received:2020-01-22 Revised:2020-02-21 Accepted:2020-02-21
• Contact: Cheng-Jian Lin E-mail:cjlin@ciae.ac.cn
• Supported by:
This work was supported by the National Key R&D Program of China (No. 2018YFA0404404), the National Natural Science Foundation of China (Nos. 11635015, U1732145, 11705285, 11805280, U1867212, and 11961131012), and the Continuous Basic Scientific Research Project (No. WDJC-2019-13).
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Dong-Xi Wang, Cheng-Jian Lin, Lei Yang, Nan-Ru Ma, Li-Jie Sun, Feng Yang, Hui-Ming Jia, Fu-Peng Zhong, Pei-Wei Wen. Compact 16-channel integrated charge-sensitive preamplifier module for silicon strip detectors.Nuclear Science and Techniques, 2020, 31(5): 48
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Abstract: 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 capacitance Cf and resistance Rf in various applications. A good energy resolution of 24.4 keV for 5.803-MeV alpha particles from 244Cm 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.