Unfolding Low-Energy Gamma-Ray Spectrum Obtained with NaI(Tl) in Air Using Matrix Inversion Method

Authors

  • M. S. Rahman Bangladesh Atomic Energy Commission
  • G. Cho Korea Advanced Institute of Science and Technology

DOI:

https://doi.org/10.3329/jsr.v2i2.4372

Keywords:

Gamma-ray spectrum, Unfold, NaI(Tl)

Abstract

Matrix inversion method is presented to unfold the gamma-ray spectrum obtained with an NaI(Tl) detector using several standard gamma-ray sources. The method is based on response matrix generated by Monte Carlo simulation of mono-energy gamma-ray photon ranging from 10 keV to 1 MeV in step of 10 keV. The comparison of the measured and simulated response function was also performed in order to validate the simulation response function. Good agreement was achieved around the photo-peak region of the spectrum, but slight deviation was observed at low energy region especially at Compton continuum region. The Compton continuum count was significantly transferred into the corresponding photo-peak and consequently the peak to background ratio was improved substantially by the application of the unfolding method. Therefore, small peak can be identified and analyzed that would otherwise be lost in the background.

 

Keywords: Gamma-ray spectrum; Unfold; NaI(Tl).

 

© 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.

 

DOI: 10.3329/jsr.v2i2.4372              J. Sci. Res. 2 (2), 221-226 (2010)

 

Downloads

Download data is not yet available.
Abstract
251
PDF
356

Author Biographies

M. S. Rahman, Bangladesh Atomic Energy Commission

Senior Scientific Officer

Nuclear Power and Energy Division

 

G. Cho, Korea Advanced Institute of Science and Technology

Professor

Department of Nuclear and Quantum Engineering

 

Downloads

Published

2010-04-26

How to Cite

Rahman, M. S., & Cho, G. (2010). Unfolding Low-Energy Gamma-Ray Spectrum Obtained with NaI(Tl) in Air Using Matrix Inversion Method. Journal of Scientific Research, 2(2), 221–226. https://doi.org/10.3329/jsr.v2i2.4372

Issue

Vol. 2 No. 2 (2010)

Section

Section A: Physical and Mathematical Sciences

License

© Journal of Scientific Research

Creative Commons License

Articles published in the "Journal of Scientific Research" are Open Access articles under a Creative Commons Attribution-ShareAlike 4.0 International license (CC BY-SA 4.0). This license permits use, distribution and reproduction in any medium, provided the original work is properly cited and initial publication in this journal. In addition to that, users must provide a link to the license, indicate if changes are made and distribute using the same license as original if the original content has been remixed, transformed or built upon.