Gaussian fitting in gamma-ray spectral decomposition

被引：0
|
作者：
Fu Chen [1 ]
Wang Nanping [1 ]
机构：
[1] China Univ Geosci Beijing, Key Lab Geo Detect, Minist Educ, Beijing 100083, Peoples R China
来源：
NUCLEAR SCIENCE AND TECHNIQUES | 2010年 / 21卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Gamma-ray spectrum; Gaussian fitting; Overlapping peaks; Decomposition and fitting;
D O I：
暂无
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
In order to extract the information of 662 keV Cs-137 spectra from the overlapping peaks with 583 keV Tl-208 609-keV (214)B1, the overlapping peaks are measured by in situ gamma-ray spectrometer using a NaI(Tl) detector The spectral model is optimized by the Gaussian fitting algorithm and the optimized fitting indexes for fitting/original value are from 0 96 to 0 99 Gaussian fitting verified by experiment is feasible for gamma-ray spectrum analysts The full energy peak of Cs-137 is extracted correctly from the overlapping peaks it is important for in-situ gamma-ray spectrometer to estimate contamination of Cs-137 in radiated environment and nuclear accident
引用
收藏
页码：214 / 217
页数：4
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