Post-collision effects in the beam direction in fast ion-atom collisions

Gy Víkor, L. Víkor, L. Gulyás

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Auger line shifts induced by post-collision interaction are studied for proton-atom (argon, neon) collisions. The energy shift is determined for Auger electrons emitted in the beam direction, in the Auger electron-projectile matching velocity region, for several acceptance angles for electron detection. For projectile velocities above the matching velocity, the Auger line energy shifts determined by the experiment agree with the values calculated by the existing theories, while for projectile velocities below the matching velocity, the measured and the calculated energy shifts show unambiguous disagreement. The advantage of the present work is the achievement of very small acceptance angles for electron detection (±0.2°, ±0.3°). For these acceptance angles, in the case when the projectile is slower than the Auger electron, the determined energy shift is negative, which is reported for the first time for fast-ion-atom collision processes.

Original languageEnglish
Pages (from-to)3317-3330
Number of pages14
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume32
Issue number14
DOIs
Publication statusPublished - Jul 28 1999

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projectiles
collisions
acceptability
shift
atoms
ions
electrons
energy
neon
argon
protons
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Post-collision effects in the beam direction in fast ion-atom collisions. / Víkor, Gy; Víkor, L.; Gulyás, L.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 32, No. 14, 28.07.1999, p. 3317-3330.

Research output: Contribution to journalArticle

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