Photoelectric cross section and mass attenuation coefficient for Cu, Co, Ni and CoCu, CoCuNi alloys using Fermi-Thomas model

K-shell photoelectric effect cross sections were calculated for the elements Co, Cu and Ni, in the energy range from 10 keV to 30 keV. The method used was based on the use of nonrelativistic treatment for the electron in screening Coulomb potential. Fermi-Thomas model was used to represent the scree...

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Main Author:	El Sheikh, Moh'd. KH. M. Abu
Format:	Thesis
Language:	English
Published:	2014
Subjects:	QC Physics
Online Access:	http://eprints.utm.my/id/eprint/48831/25/MohdKhMAbuMFS2014.pdf
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id	my-utm-ep.48831
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spelling	my-utm-ep.488312017-08-12T01:22:27Z Photoelectric cross section and mass attenuation coefficient for Cu, Co, Ni and CoCu, CoCuNi alloys using Fermi-Thomas model 2014-04 El Sheikh, Moh'd. KH. M. Abu QC Physics K-shell photoelectric effect cross sections were calculated for the elements Co, Cu and Ni, in the energy range from 10 keV to 30 keV. The method used was based on the use of nonrelativistic treatment for the electron in screening Coulomb potential. Fermi-Thomas model was used to represent the screening potential. Schrödinger equation could be solved accurately in spherical coordinates. The normalization of the continuum state wavefunction was obtained using Wentzel, Kramers and Brillowin (WKB) approximation. The results were given analytically and compared with the full relativistic screened calculations of Scofield. The mass attenuation coefficient was calculated for the CoCu, CoCuNi alloys and the results were compared with the experimental values reported by Seven. The results of this method were less accurate than those based on other methods like the self consistent field model for the atom. The value of this method lies in its simplicity and it can be presented analytically. The large difference between Seven and the theoretical ones was also investigated. 2014-04 Thesis http://eprints.utm.my/id/eprint/48831/ http://eprints.utm.my/id/eprint/48831/25/MohdKhMAbuMFS2014.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QC Physics
spellingShingle	QC Physics El Sheikh, Moh'd. KH. M. Abu Photoelectric cross section and mass attenuation coefficient for Cu, Co, Ni and CoCu, CoCuNi alloys using Fermi-Thomas model
description	K-shell photoelectric effect cross sections were calculated for the elements Co, Cu and Ni, in the energy range from 10 keV to 30 keV. The method used was based on the use of nonrelativistic treatment for the electron in screening Coulomb potential. Fermi-Thomas model was used to represent the screening potential. Schrödinger equation could be solved accurately in spherical coordinates. The normalization of the continuum state wavefunction was obtained using Wentzel, Kramers and Brillowin (WKB) approximation. The results were given analytically and compared with the full relativistic screened calculations of Scofield. The mass attenuation coefficient was calculated for the CoCu, CoCuNi alloys and the results were compared with the experimental values reported by Seven. The results of this method were less accurate than those based on other methods like the self consistent field model for the atom. The value of this method lies in its simplicity and it can be presented analytically. The large difference between Seven and the theoretical ones was also investigated.
format	Thesis
qualification_level	Master's degree
author	El Sheikh, Moh'd. KH. M. Abu
author_facet	El Sheikh, Moh'd. KH. M. Abu
author_sort	El Sheikh, Moh'd. KH. M. Abu
title	Photoelectric cross section and mass attenuation coefficient for Cu, Co, Ni and CoCu, CoCuNi alloys using Fermi-Thomas model
title_short	Photoelectric cross section and mass attenuation coefficient for Cu, Co, Ni and CoCu, CoCuNi alloys using Fermi-Thomas model
title_full	Photoelectric cross section and mass attenuation coefficient for Cu, Co, Ni and CoCu, CoCuNi alloys using Fermi-Thomas model
title_fullStr	Photoelectric cross section and mass attenuation coefficient for Cu, Co, Ni and CoCu, CoCuNi alloys using Fermi-Thomas model
title_full_unstemmed	Photoelectric cross section and mass attenuation coefficient for Cu, Co, Ni and CoCu, CoCuNi alloys using Fermi-Thomas model
title_sort	photoelectric cross section and mass attenuation coefficient for cu, co, ni and cocu, cocuni alloys using fermi-thomas model
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2014
url	http://eprints.utm.my/id/eprint/48831/25/MohdKhMAbuMFS2014.pdf
_version_	1747817482319560704

Photoelectric cross section and mass attenuation coefficient for Cu, Co, Ni and CoCu, CoCuNi alloys using Fermi-Thomas model

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