Determination of absorption and shielding parameters for Ba(ClO4)2.3H2O using experimental and theoretical methods

Abstract

In this study, absorption and shielding parameters such as mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), half-value layer (HVL), tenth-value layer (TVL), mean free path (MFP), radiation protection efficiency (RPE), total atomic cross-section (σt,a), molecular cross-section (σt,m), electronic cross sections (σt,e), effective atomic number (Zeff), effective electron density (Neff), molar extinction coefficient (ε), K-shell jump ratio (rK) and jump factor (JK) have been investigated experimentally around the K edge for Ba(ClO4)2.3H2O using EDXRF technique and the X-ray attenuation method. Initially, the targets used as secondary sources were excited by γ-rays of 59.54 keV energy emitted from a 5 Ci 241Am annular primary radioactive source. Then, HPGe detector with a resolution of 182 eV at 5.9 keV was used to count K X-rays emitted from these secondary source targets and absorbed by Ba(ClO4)2.3H2O. The experimental results obtained for various secondary photon energies were compared with the theoretical results obtained from programs such as WinXCOM, FFAST and Phy-X/PSD, and it was concluded that these experimental and theoretical results were quite compatible.