首页 | 本学科首页   官方微博 | 高级检索  
     


New Experimental Cross-Section Measurements for Cr and Cu and Comparison with Model Predictions
Authors:Souhila Ouziane  Arezki Amokrane
Affiliation:(1) Faculté de Physique, Université de Science et de la Technologie Houari Boumediènne, BP 32 EL ALIA, Bab Ezzouar, 16111 Alger, Algérie, DZ
Abstract: In order to obtain more accurate experimental values of X-ray emission cross sections, resulting from the interaction of ion with atoms, we have measured them for the K-inner-shell of Cr and Cu elements using a proton beam of energy range 1–2.3 MeV. The experimental data obtained in the present work are compared with the theoretical calculations given by the two models BEA (binary encounter approximation) and ECPSSR (energy coulombian perturbed stationary state relativistic). Also, the present experimental results are compared with those obtained by Paul and Sachert. The comparison shows a good agreement between the previous and the present data with a slight improvement in the measurement accuracy for Cr. From the theoretical point of view, agreement with the experimental data is observed only for the ECPSSR predictions, while the BEA’s cross section calculations at higher energies are approximately 20% lower than the present experimental values.
Keywords::   PIXE   cross section   BEA and ECPSSR models.
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号