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Measurements of the line resolved M-shell X-ray production cross sections for 79 Au, 82 Pb and 83 Bi by 100 keV/u proton, C, N, O ions

Authors :
Chandan Bagdia
Anil Kumar
Ashok Kumar
Shehla
Deepankar Misra
Sanjiv Puri
Lokesh C. Tribedi
Source :
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 399:74-82
Publication Year :
2017
Publisher :
Elsevier BV, 2017.

Abstract

The cross sections for production of the Mk (k = ξ, αβ, γ, m1) X-rays of 79Au, 82Pb and 83Bi induced by the 100 keV/u proton, C4+, N5+ and O6+ ions have been measured in the present work. The experimental cross sections have been compared with the earlier reported values and those calculated using the ionization cross sections based on the ECPSSR model, the X-ray emission rates based on the Dirac-Fock model, the fluorescence and Coster-Kronig yields based on the Dirac-Hartree-Slater model. In addition, the present measured proton induced X-ray production cross sections have also been compared with those calculated using the Dirac-Hartree-Slater model based ionization cross sections. The intensity ratios among the Mk X-rays have been deduced and compared with the theoretical values. The present measured Mk (k = ξ, αβ, γ, m1) X-ray production cross sections are found to be very high as compared to the theoretical values. The total M X-ray production cross sections for the targets under investigation exhibited Z p 2 dependence; Zp denotes the projectile atomic number.

Details

ISSN :
0168583X
Volume :
399
Database :
OpenAIRE
Journal :
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Accession number :
edsair.doi...........984b3c1efba27871f7b8a1edb7f092cb
Full Text :
https://doi.org/10.1016/j.nimb.2017.03.128