A transient process observation method based on the non-homogeneous Poisson process model  

作　　者：Kuo Zhao Xiao-Ping Ouyang Hui-Ping Guo Liang Chen Lei-Dang Zhou Jin-Lu Ruan Han Wang Ning Lv Run-Long Gao 赵括;欧阳晓平;过惠平;陈亮;周磊簜;阮金陆;王涵;吕宁;高润龙(Xi'an Research Institute of Hi-Tech,Xi'an 710025,China;Northwest Institute of Nuclear Technology,Xi'an 710024,China;Department of Engineering Physics,Tsinghua University,Bejing 100084,China;Xi'an Jiaotong University,Xi'an 710049,China)

机构地区：[1]Xi'an Research Institute of Hi-Tech,Xi'an 710025,China [2]Northwest Institute of Nuclear Technology,Xi'an 710024,China [3]Department of Engineering Physics,Tsinghua University,Bejing 100084,China [4]Xi'an Jiaotong University,Xi'an 710049,China

出　　处：《Chinese Physics C》2021年第4期394-403,共10页中国物理C（英文版）

基　　金：National Natural Science Foundation of China(1435010,11575145,11922507)。

摘　　要：The current-mode-counting method is a new approach to observing transient processes,especially in transient nuclear fusion,based on the non-homogeneous Poisson process(NHPP)model.In this paper,a new measurement process model of the pulsed radiation field produced by transient nuclear fusion is built based on the NHPP.A simulated measurement is performed using the model,and the current signal from the detector is obtained by simulation based on Poisson process thinning.The neutron time spectrum is reconstructed and is in good agreement with the theoretical value,with its maximum error of a characteristic parameter less than 2.3%.Verification experiments were carried out on a CPNG-6 device at the China Institute of Atomic Energy,with a detection system with a nanosecond response time.The experimental charge amplitude spectra are in good agreement with those obtained by the traditional counting mode,and the characteristic parameters of the time spectrum are in good agreement with the theoretical values.This shows that the current-mode-counting method is effective for the observation of transient nuclear fusion processes.

关 键 词：non-homogeneous poisson process pulsed radiation field current-mode-counting method 

分 类 号：O571.44[理学—粒子物理与原子核物理]