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K X-Rays Produced in Collisions of Bare Ions With Atoms Contribution of Multiple-Electron Transfer in Kr36+, Ar18+, and Ne10+ + Ar Collisions

Published

Author(s)

H Tawara, E Takacs, T Suta, K Makonyi, L P. Ratliff, John D. Gillaspy

Abstract

K X-rays have been observed in low energy collisions of bare Kr, Ar, and Ne ions ion with neutral gas targets. Although largely previously neglected, we have found that multiple-electron transfer processes play a significant role in shaping the X-ray spectra. The observed ratios of normal-satellite to hyper-satellite line intensities are found to be roughly independent of the ion species and much larger than those estimated from previously reported electron transfer cross sections, suggesting that there may be a strong correlation between two electrons during cascades. It is suggested that the exact knowledge of the initial (n01l01,n02l02) and final (n1l1,n2l2) distributions in electron transfer is the most essential missing ingredient for understanding of the entire X-ray emission process in astrophysical, laboratory, and technological plasmas.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
73

Keywords

collisions, highly charged ions, hyper-satellite lines, satellite lines, x-ray spectroscopy

Citation

Tawara, H. , Takacs, E. , Suta, T. , Makonyi, K. , Ratliff, L. and Gillaspy, J. (2006), K X-Rays Produced in Collisions of Bare Ions With Atoms Contribution of Multiple-Electron Transfer in Kr<sup>36+</sup>, Ar<sup>18+</sup>, and Ne<sup>10+</sup> + Ar Collisions, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed April 19, 2024)
Created December 31, 2005, Updated October 12, 2021