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Projectile 1s. -->. 2p excitation due to electron-electron interaction in collisions of O/sup 5+/ and F/sup 6+/ ions with H/sub 2/ and He targets

Journal Article · · Phys. Rev. Lett.; (United States)
Evidence is presented of an excitation process in ion-atom collisions analogous to electron-impact excitation in free-electron-ion collisions. The production of (1s2s2p)/sup 4/P projectile states excited in collisions of (1s/sup 2/2s) O/sup 5+/ and F/sup 6+/ with He and H/sub 2/ targets was found to increase with projectile energy above /similar to/0.75 MeV/u, in agreement with an impulse-approximation treatment of 1s..-->..2p electron-impact excitation of ions in collisions with ''quasifree'' target electrons. Such ion-atom excitations could provide presently unavailable information about inner-shell electron-impact excitation.
Research Organization:
J.R. Macdonald Laboratory, Kansas State University, Manhattan, Kansas 66506
OSTI ID:
6271265
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 62:19; ISSN PRLTA
Country of Publication:
United States
Language:
English