Abstract
Electron capture to n2 levels of F7+ (1s 2s)S3 projectiles lead to three-electron ions with an energetically allowed K-Auger decay channel. We have measured the F K-Auger emission spectra for collisions with thin gas targets of He and Ne with sufficiently high resolution to distinguish capture to several of the low-lying n values. The K-Auger production cross sections are reported as a function of the n level into which the electron is captured. The n-level dependence is measured for projectile energies of 6, 9, 12, and 15 MeV and is compared to the Oppenheimer-Brinkman-Kramers OBK model for charge transfer and to a 1n3 function. The measured K-Auger electron-production cross sections closely follow the 1n3 function which differs from the predicted OBK n dependence, even though the cross sections for the higher n levels agree with the predicted OBK energy dependence. The effects of cascading upon the calculated n dependence are also studied.
Original language | English (US) |
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Pages (from-to) | 82-91 |
Number of pages | 10 |
Journal | Physical Review A |
Volume | 29 |
Issue number | 1 |
DOIs | |
State | Published - 1984 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics