Multielectron processes in close collisions of slow Ne{sup q+} (q=1-9) ions with Ar atoms
Journal Article
·
· Physical Review. A
- Atomic Physics Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198 (Japan)
We have studied the multielectron processes in close collisions between slow Ne{sup q+} ions (q=1-9, energies of 5 and 14 keV) and Ar atoms through measurements of the charge-state correlations between 27 degree sign scattered and 70 degree sign recoiling ions. At the selected scattering angle, the internuclear distance of the closest approach at 35 keV is comparable to the L-shell radius of Ar atoms. A drastic difference between low-charged (q=1-3) and highly charged (q=7-9) Ne ions was found. For example, the most probable channel for the Ne{sup 7+} projectile is three-electron capture accompanied with two-electron loss whereas for the Ne{sup +} projectile pure double ionization was found most probable. As a general trend, the mean charges of the both ions and the mean number of captured electrons increase almost linearly with incident charge q, while the mean number of ejected electrons from the system is independent of q at both 5 and 14 keV. We also measured the charge state distributions of the Ar recoil ions as function of the Ne{sup q+} (q=3, 5, and 7) energies between 5 and 63 keV, which corresponds to distances of closest approach between 0.6 a.u. and 0.17 a.u. We found that the charge of the Ar ions increases at internuclear distances less than 0.32 a.u.
- OSTI ID:
- 20982342
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 75; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cross sections of Ne[sup [ital i]+] recoil-ion production through pure ionization, electron loss, and electron capture of projectiles in 1. 05-MeV/amu Ar[sup [ital q]+]+Ne collisions
Slow-recoil Ne/sup i//sup +/ ions produced by 1. 05 MeV/amu Ne/sup q//sup +/- (q = 2,6,8--10) and Ar/sup q//sup +/- (q = 4,10,12,14) ion impact: Evidence of inner-shell electron transfer in highly charged recoil-ion
Rydberg transition emission after multielectron capture in low-energy collisions of Ar sup 9+ with He, Ne, and Ar
Journal Article
·
Mon Aug 01 00:00:00 EDT 1994
· Physical Review A; (United States)
·
OSTI ID:7014697
Slow-recoil Ne/sup i//sup +/ ions produced by 1. 05 MeV/amu Ne/sup q//sup +/- (q = 2,6,8--10) and Ar/sup q//sup +/- (q = 4,10,12,14) ion impact: Evidence of inner-shell electron transfer in highly charged recoil-ion
Journal Article
·
Sat Aug 15 00:00:00 EDT 1987
· Phys. Rev. A; (United States)
·
OSTI ID:6459516
Rydberg transition emission after multielectron capture in low-energy collisions of Ar sup 9+ with He, Ne, and Ar
Journal Article
·
Fri Nov 30 23:00:00 EST 1990
· Physical Review, A; (USA)
·
OSTI ID:5989557