Studies on effective atomic numbers, electron densities and mass attenuation coefficients in Au alloys

Article type: Research Article

Authors: Han, I. | Demir, L.

Affiliations: Aǧrı İbrahim Çeçen University, Faculty of Arts and Sciences, Department of Physics, 04100, Aǧrı, Turkey | Atatürk University, Faculty of Sciences, Department of Physics, 25240, Erzurum, Turkey

Note: [] Corresponding author. Tel.: +90 4422314083; Fax: +90 4422360948; E-mail: [email protected]

Abstract: The total mass attenuation coefficients (μ/ρ) for pure {Au} and Au_{99}{Be}_{1}, Au_{88}{Ge}_{12}, {Au}_{95} Zn_{5} alloys were measured at 59.5 and 88.0 keV photon energies. The samples were irradiated with ^{241}Am and ^{109}Cd radioactive point source using transmission arrangement. The γ- rays were counted by a Si(Li) detector with resolution of 160 eV at 5.9 keV. Total atomic and electronic cross-sections (σ _t and σ _e), effective atomic and electron densities (Z_{eff} and N_{el}) were determined using the obtained mass attenuation coefficients for investigated Au alloys. The theoretical mass attenuation coefficients of each alloy were estimated using mixture rule.

Keywords: Mass attenuation coefficients, effective atomic number, effective electron density, alloy, Au

DOI: 10.3233/XST-2010-0238

Journal: Journal of X-Ray Science and Technology, vol. 18, no. 1, pp. 39-46, 2010