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Title: Semi-empirical formula for photon energy absorption buildup factors of elements and compounds

Authors: H.C. Manjunatha; L. Seenappa; K.N. Sridhar

Addresses: Department of Physics, Government College for Women, Kolar-563101 Karnataka, India ' Department of Physics, Government College for Women, Kolar-563101 Karnataka, India ' Department of Physics, Government First Grade College, Kolar-563101 Karnataka, India

Abstract: We have formulated a simple semi-empirical formulae for photon energy absorption buildup factors in the energy region 0.015-15 MeV, atomic number range 1≤Z≤92 and for mean free path up to 40 mfp. The results produced by the present formulae agree well with the data available in the literature. This semi-empirical formula may be extended to any compounds/mixtures/biological samples. This semi-empirical formula finds importance in the calculations of buildup factors of any materials which are required for radiation shielding, nuclear engineering, radiotherapy and nuclear medicine.

Keywords: fast reactors; sodium-cooled reactor; breed and burn; metallic fuel; ASTRID.

DOI: 10.1504/IJNEST.2019.099699

International Journal of Nuclear Energy Science and Technology, 2019 Vol.13 No.1, pp.16 - 26

Received: 12 Sep 2018
Accepted: 11 Jan 2019

Published online: 26 Apr 2019 *

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