Design, simulation, and validation of signal acquisition and digital processing for GEM-TEPC

IF 1.5 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-18 DOI:10.1016/j.nima.2025.170339

Yuchen Wang , Chunjuan Li , Yina Liu , Huiyin Wu , Mingzhe Song

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引用次数: 0

Abstract

This paper performs a detailed analysis of the signal generation process and digital processing of the GEM-TEPC detector. Convolution-based output pulse response model is established to provide a more accurate simulation method compared to exponential models. MATLAB simulations are conducted, and a charge-sensitive preamplifier circuit is designed to verify the accuracy of the model and enhance signal processing efficiency. To achieve digital signal processing, this paper designs modular digital signal processing algorithms in System Generator. Specifically, a trapezoidal filter shaping module and pile-up rejection module are employed to optimize the filtering effects, eliminating noise and pulse pile-up. The effectiveness of the designed model and algorithms is validated through comparisons between simulation and actual measurement results of ²⁴¹Am calibration source. The experimental results validate the accuracy of the simulation model, providing reliable technical support for the design of GEM-TEPC detectors and the acquisition and processing of nuclear signals.

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来源期刊

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment 物理-光谱学

CiteScore

3.20

自引率

21.40%

发文量

787

审稿时长

1 months

期刊介绍： Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section. Theoretical as well as experimental papers are accepted.