Design and implementation of the NaI(Tl)/CsI(Na) detectors output signal generator

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ZHOU Xu, LIU Cong-Zhan, ZHAO Jian-Ling, ZHANG Fei, HANG Yi-Fei, LI Zheng-Wei, ZHANG Shuo, LI Xu-Fang, LU Xue-Feng, XU Zhen-Ling and LU Fang-Jun. Design and implementation of the NaI(Tl)/CsI(Na) detectors output signal generator[J]. Chinese Physics C, 2014, 38(2): 026002. doi: 10.1088/1674-1137/38/2/026002
ZHOU Xu, LIU Cong-Zhan, ZHAO Jian-Ling, ZHANG Fei, HANG Yi-Fei, LI Zheng-Wei, ZHANG Shuo, LI Xu-Fang, LU Xue-Feng, XU Zhen-Ling and LU Fang-Jun. Design and implementation of the NaI(Tl)/CsI(Na) detectors output signal generator[J]. Chinese Physics C, 2014, 38(2): 026002.  doi: 10.1088/1674-1137/38/2/026002 shu
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Received: 2013-03-29
Revised: 2013-07-15
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Design and implementation of the NaI(Tl)/CsI(Na) detectors output signal generator

    Corresponding author: LIU Cong-Zhan,

Abstract: We designed and implemented a signal generator that can simulate the output of the NaI(Tl)/CsI(Na) detectors' pre-amplifier onboard the Hard X-ray Modulation Telescope (HXMT). Using the development of the FPGA (Field Programmable Gate Array) with VHDL language and adding a random constituent, we have finally produced the double exponential random pulse signal generator. The statistical distribution of the signal amplitude is programmable. The occurrence time intervals of the adjacent signals contain negative exponential distribution statistically.

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