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http://dx.doi.org/10.12989/amr.2013.2.2.093

Calculation of gamma buildup factors for point sources  

Kiyani, Abouzar (Payam Noor University)
Karami, Abbas Ali (Bu-Ali Sina University, Department of Physics)
Bahiraee, Marziye (Payam Noor University)
Moghadamian, Hossein (Applied Sciences University)
Publication Information
Advances in materials Research / v.2, no.2, 2013 , pp. 93-98 More about this Journal
Abstract
Objective of this study is to calculate gamma buildup factors for pointed and isotropic gamma sources in depleted uranium, uranium dioxide, natural uranium, tin, water and concrete using MCNP4C code. The thickness of the media ranges from 0.5 to 10 mean-free-path (mfp) and gamma energy ranges from 0.5 to 10 MeV. Owing to the outstanding accuracy of MCNP in calculation involving gamma interaction, results fairly match those reported previously. The maximum relative error is 2%.
Keywords
MCNP code; radiation shielding; buildup factors; mean free path; gamma;
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1 Bozkurt, A. and Tsoulfanidis, N. (1996) "Exposure buildup factors of UO2 using the Monte Carlo method," Nucl. Sci. Eng., 221, 257-260.
2 Briesmeister, J.F. (2000), MCNP Monte Carlo N-Particle Transport Code System Los Alamos, National Laboratory.
3 Jiang, S.H. (1980), "Gamma-ray build up factors for stratified lead and water shields", Nucl. Sci. Eng., 75, 16-29.   DOI
4 Kiyani, A., Rostam, G.Gh., Kiai, S.M.S., Bakhsh, H.J. and Mahdavi, F. (2011), "Measurements of the thermal neutron macroscopic absorption cross section for neutron absorbing layers", J. Fusion Energ., 30, 473-476, DOI 10.1007/s10894-011-9400-9.   DOI
5 Martin, J.E. (2006), Physics for Radiation Protection, 2nd Edition, WILEY-Vch Verlag GmbH & Co. KGaA, Weinheim, 288-289.
6 Sardari, D., Abbaspour, A., Baradaran, S. and Babapour, F. (2009), "Estimation of gamma- and x-ray photons; buildup factor in soft tissue with Monte Carol method", Appl. Radiat. Isotopes, 67, 1438-1440.   DOI   ScienceOn
7 Shirakawa, Y. (2000), "A build-up treatment for thickness gauging of steel plates based on Gamma-ray transmission", Appl. Radiat. Isotopes, 53, 581-586.   DOI   ScienceOn
8 Shultis, J.K. and Faw, R.E. (2000), Radiation Shielding, American Nuclear Society, p.215.