Abstract
The PIXE spectra resulting from proton beam bombardment in the energy range of 1 to 2.5 MeV of the thin targets of 14 lanthanides were measured using a Ge detector to obtain a relative intensity database of the L-shell lines. The database utilizes the relativistic Hartree-Slater (RHS) emission rates reported by Scofield. To correct the other quantities affecting the relative intensities such as L-subshell ionization cross sections etc., empirical factors are introduced and the values are determined by the least squares method. The reduced chi-squared value is 0.85 ± 0.4 for 90 spectra. The relative intensities of Nd, Dy and Yb obtained at 2 MeV are compared with the recent ECPSSR approach by Cohen and Harrigan, and it is found that these results are in fairly good agreement. The PIXE spectra of the mixtures of lanthanides and the crude rare-earth chlorides from monazite are analyzed by use of the database. The reasonable analytical results obtained confirm the practical utility of this approach. The performance of a program, PIXS, developed for doing the analysis on a personal computer is also reported.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
