Vol. 2, Issue 1, Part J (2016)

Abstract
The protection from the high energy gamma radiation normally we use the materials having high density and atomic number so in this paper, we calculated the mass attenuation coefficient and atomic cross section for the pure elements of high atomic number such as Tin, Antimony, Tungsten, Lead and Bismuth in the energy range from 100keV to 1500keV were measured by using transmission experiments. The intensity of photons of 133Ba, 22Na, 137Cs, 54Mn and 60Co radio-isotopes were measured by NaI(Tl) scintillation detector and results obtained are in good agreement with the values reported in the literatures and XCOM.