电子束离子阱中高电荷态氪离子的软X射线光谱

Soft-x-ray spectra of highly charged Kr ions in an electron beam ion trap.

作者信息

Chen H, Beiersdorfer P, Fournier K B, Träbert E

机构信息

Department of Physics and Advanced Technologies, Lawrence Livermore National Laboratory, Livermore, California 94550-9234, USA.

出版信息

Phys Rev E Stat Nonlin Soft Matter Phys. 2002 May;65(5 Pt 2):056401. doi: 10.1103/PhysRevE.65.056401. Epub 2002 Apr 24.

DOI:10.1103/PhysRevE.65.056401

PMID:12059709

Abstract

Systematic variation of the electron-beam energy in the EBIT-II electron beam ion trap has been employed to produce soft-x-ray spectra (20-75 A) of Kr with well-defined maximum charge states ranging from Cu- to Al-like ions. Guided by large-scale relativistic atomic structure calculations, the strongest lines have been identified with Delta n=1 (n=3 to n(')=4) transitions from Ni- to P-like ions (Kr(8+)-Kr(21+)), as well as a number of 3p-4d and 3d-5f transitions.

摘要

在EBIT-II电子束离子阱中，通过系统改变电子束能量，产生了氪的软X射线光谱（20 - 75埃），其最大电荷态范围明确，从类铜离子到类铝离子。在大规模相对论原子结构计算的指导下，最强的谱线已被确定为从类镍离子到类磷离子（Kr(8 +)-Kr(21 +)）的Δn = 1（n = 3到n' = 4）跃迁，以及一些3p - 4d和3d - 5f跃迁。