A Study of Gamma Unfolding for PB, HC Single Shields and Multilayers Containing PB Shield
American Journal of Physical Chemistry
Volume 6, Issue 6, December 2017, Pages: 110-118
Received: Dec. 29, 2016; Accepted: Apr. 10, 2017; Published: Jan. 15, 2018
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Authors
M. S. Hossain, Dept. of Physics, Bangladesh Army University of Engineering & Technology (BAUET), Qadirabad Cantonment, Natore, Bangladesh
S. M. A. Islam, Dept. of Physics, Jahangirnagar University, Savar, Dhaka, Bangladesh
M. Asaduzzaman, Dept. of Physics, Bangladesh Army University of Engineering & Technology (BAUET), Qadirabad Cantonment, Natore, Bangladesh
M. A. Zaman, Dept. of Physics, Jahangirnagar University, Savar, Dhaka, Bangladesh
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Abstract
The gamma ray spectrum obtained from a 3.7 × 104 Bq 252Cf source after passing through different shielding materials at different thicknesses and different arrangements were detected with a NaI(Tl) detector was fed to a computerized MCA to have a spectrum. This was then stored and subsequently unfolded. The unfolded dose spectra of the fission gamma ray spectrum of the 252Cf source were also measured for some specific shield thicknesses for all the shielding arrangements studied. Theoretical calculations have been performed to study the characteristics of the above mentioned shielding setups by using the three dimensional Monte Carlo computer code MCNP for fission gamma rays. These are then compared with the experimentally obtained values. The agreement is quite satisfactory. Gamma ray fluxes and corresponding dose values have also been calculated. The purpose of the investigation was to determine the effectiveness of the materials and their multilayers as the gamma ray shielding. It has been found that the materials (single layer and multilayer) studied are very effective as the shield for gamma rays.
Keywords
Gamma Unfolding, PB (Poly Boron), HC (Heavy Concrete), PB Single Shields, Multilayers, Monte Carlo Computer Code MCNP, Fission Gamma Rays
To cite this article
M. S. Hossain, S. M. A. Islam, M. Asaduzzaman, M. A. Zaman, A Study of Gamma Unfolding for PB, HC Single Shields and Multilayers Containing PB Shield, American Journal of Physical Chemistry. Vol. 6, No. 6, 2017, pp. 110-118. doi: 10.11648/j.ajpc.20170606.12
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
References
[1]
Neutron Gamma Shielding, Reactor Experiments, Inc. USA Catalogue 24, p 2.
[2]
F. E. Senetle and P. Philbin, Health Phys., 23(1972)529-532.
[3]
R. M. Megahid, Int. Jr. Appl. Radiat. Isot. 36(1985)307-310.
[4]
M S Hossain, S. M. A. Islam, M. Asaduzzaman, and M. A. Zaman, A Study of Gamma Unfolding for PB, BX Single Shields and Multilayers Containing PB Shield, NUB Journal of applied Sciences, Vol -3, Issue- 1, May 2016.
[5]
M S Hossain, M. A. Quasem, S. M. A. Islam and M. A. Zaman Study of shielding behaviour of some multilayer shields containing PB and BX, Journal of Applied Physics, India, 2010.
[6]
G. F. Knoll, Radiation Detection and Measurements, 1979, John Wiley and Sons, Inc. p 732.
[7]
J. H. Hubble, Rev. Sci. Instr. 29(1958)65.
[8]
R. Gold, TID, 18304(1963).
[9]
C. A. Bisselle, R. A. Karam and J. A. Wethington JR., University of Florida, Gainesville, Fia. Appl. Radiat. Isot., 5(1964)529-539.
[10]
Edgardo Browne and Richard B. Firestone, “Table of Radoactive Isotopes”, Virginia S. Shirley, Editor, A Wiley-Interscience Publication, John Wiley & Sons, USA (1986), ISBN O-471-84909-X.
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