Electron capture from Rydberg atoms by highly-charged ions

Journal Article · Wed May 01 04:00:00 EDT 1996 · Bulletin of the American Physical Society

OSTI ID:394272

Wang, J; McGuire, J H; Olson, R E ^[1]; Burgdoerfer, J ^[2]

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1. Univ. of Missouri, Rolla, MO (United States)
2. Univ. of Tennessee, Knoxville, TN (United States)

The authors report cross sections in electron capture from circular Rydberg atoms by highly charged ions A{sup q+} for charge states q ranging from 1 to 40. The initial Rydberg state has n,l=25,24 as its principal and angular momentum quantum numbers, respectively. The collision speed is chosen between 0.4 to 4 times the electron orbital speed, corresponding in collision energies from 6.4 to 640 eV/u. Also studied are the final state distribution of the captured electron and orientation effects of the initial state. The authors find large differences in all the aspects investigated between the lowest and the highest charged states. Results from a simple classical over-barrier model are in surprisingly good agreement with the full classical simulations for large charge states. Results from a simple classical over-barrier model are in surprisingly good agreement with the full classical simulations for large charge states. For singly charged ions q = 1, the convergence of classical scalings is also investigated and found to be very slow from n = 4 to n = 100.

• OSTI ID: 394272
• Report Number(s): CONF-9605105--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 3 Vol. 41; ISSN 0003-0503; ISSN BAPSA6
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CROSS SECTIONS
ELECTRON CAPTURE
EV RANGE
ION-ATOM COLLISIONS
KEV RANGE 01-10
KEV RANGE 10-100
RYDBERG STATES