Study of time-domain digital pulse shaping algorithms for nuclear signals |
| |
Authors: | ZHOU Jianbin ZHOU Wei LEI Jiarong TUO Xianguo ZHU Xing LIU Yi |
| |
Affiliation: | ZHOU Jianbin1 ZHOU Wei1,2,* LEI Jiarong3 TUO Xianguo1 ZHU Xing1 LIU Yi1 1College of Nuclear,Chengdu University of Technology,Chengdu 610059,China 2State Key Laboratory of Coal Resources & Mine Safety,College of Mining Engineering,China University of Mining & Technology,Xuzhou 221116,China 3Institute of Physics and Chemical,China Academy of Engineering Physics,Mianyang 621900,China |
| |
Abstract: | With the development on high-speed integrated circuit,fast high resolution sampling ADC and digital signal processors are replacing analog shaping amplifier circuit.This paper firstly presents the numerical analysis and simulation on R-C shaping circuit model and C-R shaping circuit model.Mathematic models are established based on 1st order digital differential method and Kirchhoff Current Law in time domain,and a simulation and error evaluation experiment on an ideal digital signal are carried out with Excel VBA.A digital shaping test for a semiconductor X-ray detector in real time is also presented.Then a numerical analysis for Sallen-Key(S-K) low-pass filter circuit model is implemented based on the analysis of digital R-C and digital C-R shaping methods.By applying the 2nd order non-homogeneous differential equation,the authors implement a digital Gaussian filter model for a standard exponential-decaying signal and a nuclear pulse signal.Finally,computer simulations and experimental tests are carried out and the results show the possibility of the digital pulse processing algorithms. |
| |
Keywords: | R-C shaping C-R shaping Nuclear pulse Digital S-K filter Digital Gaussian filter |
本文献已被 CNKI 维普 等数据库收录! |
|