Gaussian fitting in gamma-ray spectral decomposition

Chen FU; Nanping WANG

doi:10.13538/j.1001-8042/nst.21.214-217

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Gaussian fitting in gamma-ray spectral decomposition

LOW ENERGY ACCELERATORS AND RADIATION APPLICATIONS | Updated：2021-01-29

- Gaussian fitting in gamma-ray spectral decomposition
- Nuclear Science and Techniques Vol. 21, Issue 4, (2010)
- Affiliations：
  
  1.Key Laboratory of Geo-detection (China University of Geosciences, Beijing), Ministry of Education, Beijing 100083, China
- Author bio：
  
  Corresponding author. E-mail address: npwang@cugb.edu.cn
  
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- DOI：10.13538/j.1001-8042/nst.21.214-217 CLC：
- Published：20 August 2010，
  
  Received：05 September 2009，
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Cite this article
Chen FU, Nanping WANG. Gaussian fitting in gamma-ray spectral decomposition. [J]. Nuclear Science and Techniques 21(4):214-217(2010)
DOI：

Chen FU, Nanping WANG. Gaussian fitting in gamma-ray spectral decomposition. [J]. Nuclear Science and Techniques 21(4):214-217(2010) DOI： 10.13538/j.1001-8042/nst.21.214-217.

Gaussian fitting in gamma-ray spectral decomposition 1 first-author 1 corresp Corresponding author. E-mail address: npwang@cugb.edu.cn Corresponding author. E-mail address: npwang@cugb.edu.cn npwang@cugb.edu.cn Key Laboratory of Geo-detection (China University of Geosciences, Beijing), Ministry of Education, Beijing 100083, China Key Laboratory of Geo-detection (China University of Geosciences, Beijing), Ministry of Education, Beijing 100083, China In order to extract the information of 662-keV 137 Cs spectra from the overlapping peaks with 583-keV 208 Tl, 609-keV 214 Bi, the overlapping peaks are measured by in-situ γ -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 γ -ray spectrum analysis. The full energy peak of 137 Cs is extracted correctly from the overlapping peaks, it is important for in-situ γ -ray spectrometer to estimate contamination of 137 Cs in radiated environment and nuclear accident. Gamma-ray spectrum Gaussian fitting Overlapping peaks Decomposition and fitting References Wang H D . Radiat Prot Bull , 2000 , 20 : 38 - 41 . Radiat Prot Bull Cheng Y X , Wang N P , Hou S L . Nucl Geophys Surv , Beijing : Geological Publishing House , 2005 , 97 - 280 . Nucl Geophys Surv Dubois G , Cort M D . J Environ Radioact , 2001 , 53 : 271 - 289 . J Environ Radioact Allyson J D , Sanderson D C W . J Environ Radioact , 1998 , 38 : 259 - 282 . J Environ Radioact Guillot L . J Environ Radioact , 2001 , 53 : 281 - 398 . J Environ Radioact Pei S Y . Master's thesis . Beijing : The school of geophysics and information technique, China University of Geo-sciences (Beijing) , 2005 , 6 - 20 . Master's thesis Xue D Y . Advanced applied mathematical problem solution with MATLAB . Beijing : Tsinghua University Press , 2004 , 210 - 226 . Advanced applied mathematical problem solution with MATLAB F T , Li Y . Math Prog , 1994 , 67 : 189 - 224 . Math Prog Wang N P , Pei S Y , Huang Y . Radiat Prot , 2005 , 25 : 347 - 356 . Radiat Prot Ni Z C . Medical Statistics . Beijing : People's Medical Publishing House , 1990 , 143 - 148 . Medical Statistics 10.13538/j.1001-8042/nst.21.214-217 Supported by National Natural Science Foundation of China (No. 40274023 and No. 40674067) 2009-09-05 2010-08-20 2021-01-19 2010 Nuclear Science and Techniques 04 21

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