Energy Dependency of Proton-Induced Outer-Shell Multiple Ionization for 48Cd and 49In-Reference-Cited by-同舟云学术

Energy Dependency of Proton-Induced Outer-Shell Multiple Ionization for 48Cd and 49In

Published:2021-01-20 Issue: Volume:2021 Page:1-7
ISSN:1469-803X
Container-title:Laser and Particle Beams
language:en
Short-container-title:Laser and Particle Beams

Author:

Zhou Xianming¹²^ORCID,Wei Jing¹,Cheng Rui³^ORCID,Chen Yanhong³,Zhao Yongtao²³,Zhang Xiaoan¹³

Affiliation:

1. Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and IMP-CAS, Xianyang Normal University, Xianyang 712000, China

2. School of Science, Xi’an Jiaotong University, Xi’an 710049, China

3. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Abstract

L subshell X-rays of 48Cd and 49In have been measured for the impact of protons with energies from 75 to 250 keV. Obviously, it is found that Lγ2 (abbreviation Lγ2,3 for 48Cd and Lγ2,3,4 for 49In) X-ray emission is enhanced in comparison with Lγ1 X-ray emission. The relative intensity ratios of Lγ2 to Lγ1 X-ray are larger than the atomic data and increase with decreasing proton energy. This is caused by the multiple ionization of outer-shell electrons. To verify this explanation, the enhancements for relative intensity ratio of Lι and Lβ2 to Lα X-ray in experiments are discussed, and the direct ionization cross sections of 4d, 5s, and 5p electrons are calculated using BEA theory.

Funder

National Key R&D Program of China

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics

Link

http://downloads.hindawi.com/journals/lpb/2021/6653739.pdf

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