X-ray emission for Ar11+ ions impacting on various targets in the collisions near the Bohr velocity

• 作者: Xian-Ming Zhou Jing Wei Rui Cheng Yan-Hong Chen Ce-Xiang Mei Li-Xia Zeng Chang-Hui Liang Yao-Zong Li Yong-Tao Zhao Xiao-An Zhang
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（8）
• 所属期刊栏目: ATOMIC AND MOLECULAR PHYSICS
• 页码范围: 351-356
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/abe22f

摘要

X-ray emission from the collisions of 3 MeV Ar11+ ions with V,Fe,Co,Ni,Cu,and Zn is investigated.Both the x-rays of the target atom and projectile are observed simultaneously.The x-ray yield is extracted from the original count.The inner-shell ionization cross section is estimated by the binary encounter approximation model and compared with the experimental result.The remarkable result is that the Ar K-shell x-ray yield is diminished with the target atomic number increasing,which is completely opposite to the theoretical calculation.That is interpreted by the competitive consumption of the energy loss for the ionization of inner-shell electrons between the projectile and target atom.