Dielectronic recombination of Ar[sup 15+] ions involving [Delta][ital n]=0 and [Delta]n=1 transitions

Conference · Sat Jun 05 04:00:00 EDT 1993 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5565656

Schennach, S; Mueller, A; Frank, A; Haselbauer, J; Spies, W; Uwira, O; Wagner, M ^[1]; Becker, R; Jennewein, E; Kleinod, M ^[2]; Angert, N; Mokler, P H ^[3]; Badnell, N R; Pindzola, M S ^[4]; Bernstein, E M ^[5]

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1. Institut fuer Kernphysik, Universitat Giessen, D-6300 Giessen (Germany)
2. Institut fuer Angew. Physik, Univ. Frankfurt, D-6000 Frankfurt (Germany)
3. Gesellschaft fuer Schwerionenforschung (GSI), D-6100 Darmstadt (Germany)
4. Department of Physics, Auburn University, Auburn, AL 36849 (United States)
5. Western Michigan Univ. Kalamazoo, MI 49008 (United States)

Dielectronic recombination (DR) of A[ital R][sup 15+](1[ital s][sup 2]2[ital s]) ions was studied in a single-pass merged-beams experiment at the UNILAC accelerator of GSI. Absolute recombination rates and cross sections were measured for electron-ion center-of-mass energies from 0 to 580 [ital eV]. A number of Rydberg states formed by DR with [Delta][ital n]=0 and [Delta][ital n]=1 core transistions and even individual terms in the 1[ital s][sup 2]3[ital l]3[ital l][prime] configuration could be resolved. Theoretical calculations of DR cross sections are in good overall agreement with the data. In the calculations for [Delta][ital n]=0 transitions effects of electric fields have to be included to reproduce the magnitude of the measured DR rates at the limit of the 2[ital p][sub 1/2][ital nl] and 2[ital p][sub 3/2]nl Rydberg series. Discrepancies between theory and experiment are observed at the series limits of the (1[ital s][sup 2]3[ital lnl][prime]) Rydberg series.

• OSTI ID: 5565656
• Report Number(s): CONF-920948--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 274:1
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ARGON IONS
BEAM DYNAMICS
BEAM-BEAM INTERACTIONS
CHARGED PARTICLES
COLLISIONS
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EXCITED STATES
ION COLLISIONS
IONS
MULTICHARGED IONS
RECOMBINATION
RYDBERG STATES
S STATES