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Title: Production of metastable Ar[sup +] ions by electron-impact ionization of Ar measured by translational-energy spectroscopy

Journal Article · · Physical Review A; (United States)
 [1]; ;  [2]
  1. Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008-5151 (United States)
  2. Mass Spectrometry Research Unit, University College of Swansea, Swansea SA28PP (United Kingdom)

The translational-energy-spectroscopy technique has been used to measure the apparent ionization-excitation functions for the metastable states 3 [sup 4]D, 3[ital d] [sup 4]F, 3[ital d] [sup 2]F, and 3[ital d][prime] [sup 2][ital F] of an Ar[sup +] ion beam extracted from an electron-impact ion source. The initial states were identified from the measured energy loss in the translational-energy spectra for single-electron stripping from ground-state and metastable Ar[sup +] ions in collisions with O[sub 2]. This technique provides an alternative method of selectivity in the study of electron-impact ionization and excitation processes.

OSTI ID:
6381174
Journal Information:
Physical Review A; (United States), Vol. 48:1; ISSN 1050-2947
Country of Publication:
United States
Language:
English