辐射防护2024，Vol.44Issue(z1)：24-27,4.
不同探源距下241Am的α谱模拟与解析
Simulation and analysis of 241 Am alpha spectrum with varying source to detector distance
潘蓝天 1李瑞 1范磊 1黄欣杰 1陈祥磊 1王轶 1刘兴宇1
作者信息
- 1. 武汉第二船舶设计研究所,武汉 430205
- 折叠
摘要
Abstract
This paper investigates the alpha energy spectrum of 241 Am and analyzes its generation process.Based on the analysis,detector response function is derived,and a detector response function model based on the convolution of exponential and Gaussian functions is established for the alpha energy spectrum of 241Am.The model parameters are obtained using the weighted nonlinear least squares method,and the goodness of fit is evaluated using the Rex2.The model is then used to reconstruct the alpha energy spectrum of 241Am obtained from Geant4 simulation.The impact of source-to-detector distance on fitting performance is investigated.This study could provide theoretical guidance for the development of an alpha spectrometer and algorithm design based on the PIPS detector.关键词
α能谱/探测器响应函数/加权非线性最小二乘法/Geant4模拟Key words
alpha energy spectrum/detector response function/weighted nonlinear least squares method/Geant4 simulation分类
能源科技引用本文复制引用
潘蓝天,李瑞,范磊,黄欣杰,陈祥磊,王轶,刘兴宇..不同探源距下241Am的α谱模拟与解析[J].辐射防护,2024,44(z1):24-27,4.
