Open AccessInvestigation on radiation shielding parameters of ordinary, heavy and super heavy concretes
Author(s) -
Parminder Singh,
M Nagappa Badiger
Publication year - 2014
Publication title -
nuclear technology and radiation protection
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 16
eISSN - 1452-8185
pISSN - 1451-3994
DOI - 10.2298/ntrp1402149s
Subject(s) - electromagnetic shielding , kerma , nuclear engineering , materials science , attenuation , neutron , radiation shielding , gamma ray , mass fraction , neutron radiation , radiation , nuclear physics , composite material , physics , optics , dosimetry , nuclear medicine , engineering , medicine
Shielding of a reactor is required for protection of people and environment during normal operation and accidental situations. In the present paper we investigated the shielding parameters viz. mass attenuation coefficients, linear attenuation coefficients, tenth-value layer, effective atomic numbers, kerma relative to air and exposure buildup factors for gamma-ray for ordinary, heavy, and super heavy concretes. Macroscopic effective removal cross-sections for fast neutron had also been calculated. Ordinary concrete is economically suitable for mixture high energy gamma-ray and neutron as it has large weight fraction of low-Z as compared with super heavy concretes to slow down the neutron. Super heavy concretes are superior shielding for both reactor operation and accident situations. The study is useful for optimizing for shielding design and radiation protection in the reactors