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Rydberg state population due to multicapture processes in Kr[sup q+] (q=17-18) on Kr collisions

Conference · · AIP Conference Proceedings (American Institute of Physics); (United States)
OSTI ID:5406546
; ; ;  [1];  [2]
  1. LASIM Universite Lyon 1, Campus de la Doua, F-69622 Villeurbanne Cedex (France)
  2. TSI Universite de Saint-Etienne, 23 rue du Dr Paul Michelon, F-4202, Saint-Etienne (France)

Initial population distributions in principal quantum numbers n of excited states were obtained in multicapture processes for Kr[sup q+] (q=17-18) on Kr collisions at low energy ([approx]5 keV/u). Radiative decay curves of Rydberg transitions of the projectivle ions have been measured by shifting the target gas jet along the projectile beam, i.e. perpendicularly to the observation axis. As a result for Kr[sup 18+] projectiles, we have found that an Kr[sup 16+] constant initial population from n=14 to n=19 allows the observed Kr XVII 14--15 radiative decay curve to reproduce relatively well. In addition to this, coincidence time of flight spectroscopy between recoil ion photons and recoil ions have been performed in order to determine the decay curves of recoil ion transitions. We found an initial population distribution centered around n=20 for the 7i--8k transition of Kr VII recoil ion.

OSTI ID:
5406546
Report Number(s):
CONF-920948--
Journal Information:
AIP Conference Proceedings (American Institute of Physics); (United States), Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Vol. 274:1; ISSN APCPCS; ISSN 0094-243X
Country of Publication:
United States
Language:
English