Studies on effective atomic numbers, electron densities from mass attenuation coefficients in TixCo1-x and CoxCu1-x alloys

---

Atıf İçin Kopyala

Han I., Demir L.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, cilt.267, ss.3505-3510, 2009 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 267
• Basım Tarihi: 2009
• Doi Numarası: 10.1016/j.nimb.2009.08.022
• Dergi Adı: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.3505-3510
• Anahtar Kelimeler: Mass attenuation coefficient, Effective atomic number, Effective electron density, 3d Transition metal alloy, PHOTON ENERGY-ABSORPTION, ESSENTIAL AMINO-ACIDS, RANGE 1 KEV, NI-ALLOYS, SUPERCONDUCTOR
• Atatürk Üniversitesi Adresli: Evet

Özet

The total mass attenuation coefficients (mu/rho), for pure Ti, Co, Cu and TixCo1-x, and CoxCu1-x (x = 0.8, 0.7, 0.6, 0.5, 0.4, 0.3 and 0.2) alloys were measured at 22.1, 25.0, 59.5 and 88.0 keV photon energies. The samples were irradiated with Cd-109 and Am-241 radioactive point source using transmission arrangement. The X- and gamma-rays were counted by a Si(Li) detector with resolution of 160 eV at 5.9 keV. Total atomic and electronic cross-sections (sigma(t) and sigma(e)), effective atomic numbers (Z(eff)) and electron densities (N-el) were determined using the obtained mu/rho values for investigated 3d alloys. The theoretical mass attenuation coefficients were estimated using mixture rule and the experimental values of investigated parameters were compared with the calculated values. (C) 2009 Elsevier B.V. All rights reserved.