Recoil longitudinal momentum and {ital Q}-value measurements in electron-capture processes of fast multiply charged ions colliding with He
- J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506-2604 (United States)
The recoil longitudinal momentum and {ital Q} value for electron capture with and without accompanying target ionization were measured for high-energy O{sup 7+}-F{sup 8+}+He collisions using coincident recoil momentum spectroscopy. Electron capture into the projectile {ital K} shell and {ital L}-and-higher shells is separated in the recoil longitudinal momentum. The spectra for capture show that capture to the {ital L} and higher shells dominates at energies from 0.6 to 3.7 MeV/u while capture to the {ital K} shell increases with increasing collision energy. The relative contribution of capture to the {ital K} shell is consistent with theoretical expectation. Transfer ionization is compared with single capture within the independent-electron approximation. The results show that transfer ionization can be interpreted as being due to independent processes of capture and ionization.
- OSTI ID:
- 44646
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 5 Vol. 51; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Q -value measurements in charge-transfer collisions of highly charged ions with atoms by recoil longitudinal momentum spectroscopy
Multiple-electron ionization, capture, and loss by 19-MeV F{sup {ital q}+} ({ital q}=2--9) in collisions with Ne and Ar