L-shell x-ray fluorescence relative intensities for elements with 62≤Z≤83 at 18 keV and 23 keV by synchrotron radiation  

作　　者：M Alqadi S AL-Humaidi H Alkhateeb F Alzoubi 

机构地区：[1]Department of Physics,Jordan University of Science and Technology,Irbid,Jordan

出　　处：《Chinese Physics B》2023年第8期270-273,共4页中国物理B（英文版）

基　　金：supported by the Jordan University of Science and Technology(Grant No.20180167);the SESAME Synchrotron Center Jordan(Grant No.20185004)。

摘　　要：The relative intensities of L-subshell x-ray fluorescence(XRF)for elements with atomic numbers 62≤Z≤83 were measured at two excitation energies,18 keV and 23 keV,using a synchrotron radiation source at a beamline of the Synchrotron Light Center for Experimental Science and Applications in the Middle East(SESAME),Jordan.The experimentally measured results of the relative intensities were compared with the calculated results using the subshell fluorescence yield and the Coster-Kronig transition probabilities recommended by Campbell and the values based on the Dirac-Hartree-Slater model by Puri.The experimental and theoretical results are in agreement.In this work,L XRF relative intensities for the elements Sm,Gd,Tb,Er,Ta,W,Re,Hg,Pb and Bi at energies of 18 keV and 23 keV were measured.

关 键 词：L shell x-ray fluorescence(XRF) relative intensities synchrotron radiation 

分 类 号：TL544[核科学技术—核技术及应用]