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《中国物理C》(英文)编辑部
2024年10月30日

A method for interpolating asymmetric peak shapes in multiplet γ-ray spectra

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WANG Si-Guang, MAO Ya-Jun, TANG Pei-Jia, ZHU Bo and LIANG Yu-Tie. A method for interpolating asymmetric peak shapes in multiplet γ-ray spectra[J]. Chinese Physics C, 2009, 33(5): 383-386. doi: 10.1088/1674-1137/33/5/013
WANG Si-Guang, MAO Ya-Jun, TANG Pei-Jia, ZHU Bo and LIANG Yu-Tie. A method for interpolating asymmetric peak shapes in multiplet γ-ray spectra[J]. Chinese Physics C, 2009, 33(5): 383-386.  doi: 10.1088/1674-1137/33/5/013 shu
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Received: 2008-08-26
Revised: 2008-12-10
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A method for interpolating asymmetric peak shapes in multiplet γ-ray spectra

    Corresponding author: WANG Si-Guang,

Abstract: 

The peak shapes of γ-rays at various energies must be known before unfolding the multiplet spectra obtained by using semiconductor or scintillation detectors. Traditional methods describe isolated peaks with multi-parameter fitting functions, and assume that most of these parameters do not vary with energy because it is rare to find a spectrum with enough isolated peaks to constrain their dependence. We present an algorithm for interpolating the γ-ray profile at any intermediate energy given a pair of isolated γ-ray peaks from the spectrum under consideration. The algorithm is tested on experimental data and leads to a good agreement between the interpolated profile and the fitting function. This method is more accurate than the traditional approach, since all aspects of the peak shape are allowed to vary with energy. New definitions of Left-Half Width at Half Maximum, and Right-Half Width at Half Maximum for peak shape description are introduced in this paper.

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