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open-access-imgOpen AccessSTUDY ON DECONVOLUTION FOR GAMMA SPECTROSCOPY USING ML-EM ALGORITHM AND MCNP SIMULATION
Author(s)
Nhon Van,
Ngoc Tuan Le,
Loan Thi Hong Truong,
Phuong Nguyen Dang
Publication year2009
Publication title
khoa học công nghệ
Resource typeJournals
PublisherViet Nam National University Ho Chi Minh City
In this paper, the ML-EM (Maximum Likelihood Fitting by Expectation Maximization) algorithm was used in deconvolution of continuum gamma ray for HPGe detector. A set of response functions was simulated by using MCNP4C2 code for gamma radiation emitted from point source located at 10.6cm from detector. The source energies varied from 50.1 keV to 1502.1 keV with 2.5 keV step were detected by the 8192 - channel spectrometer. The results of deconvolution for some gamma spectra of Co-60, CS-137, Eu-152 showed that the photopeak areas of the deconvoluted spectra were considerably raised in compare with ones of measured spectra in the same condition.
Subject(s)algorithm , astronomy , chemistry , computational physics , deconvolution , detector , expectation–maximization algorithm , gamma ray spectrometry , gamma spectroscopy , mathematics , maximum likelihood , optics , particle detector , physics , quantum mechanics , radiation , radiochemistry , semiconductor detector , spectral line , spectrometer , spectroscopy , statistics
Language(s)English
ISSN1859-0128
DOI10.32508/stdj.v12i12.2315

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