L X-ray fluorescence cross-sections for elements 40 ≤ Z ≤ 92 at energies 2-116 keV (a computer program 'LCSGEN')

被引：13

作者：

Mittal, R ^{[1
]}

Vandana ^{[1
]}

Singh, M ^{[1
]}

机构：

[1] Punjabi Univ, Dept Phys, Nucl Sci Lab, Patiala 147002, Punjab, India

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2001年 / 68卷 / 05期

关键词：

X-rays; X-ray fluorescence cross-sections; empirical relation;

D O I：

10.1016/S0022-4073(00)00120-5

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

L-l,L-alpha,L-beta and L-gamma X-ray fluorescence cross-sections for the elements 40 less than or equal to Z less than or equal to 92 at energies 2-116 keV have been generated from an empirical relation fitted to two sets of available semi-empirical and theoretical cross-sectional values. The excitation energy E for an element is constrained by the condition that only L and higher shell vacancies are produced in the element. The closeness of generated and existing values of L X-ray fluorescence cross-sections recommends the use of generated values in the fields of Atomic & Molecular Physics and trace elemental analysis. For this purpose a computer software 'LCSGEN' has been developed. On personal computer 'LCSGEN' generates the cross-sectional values in b/atom just by entering the atomic number of element and excitation photo energy in keV. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：593 / 609

页数：17