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Electron-impact ionization of laser-excited Ba-138 (... 5p6 6s 6p) and Ba-138 (... 5p6 6s 5d) atomsElectron-impact ionization cross sections for laser-excited Ba-138 (... 5p6 6s 6p; 1P1, M = - 1) and cascade-populated Ba-138 (... 5p6 6s 5d; 1D + 3D) atoms were measured in the threshold to 10 eV energy range. The peak cross sections for the excited species are about a factor of 2 larger than that for ground-state Ba. In addition, it was demonstrated that ionization from individual magnetic substates of various hyperfine levels can be studied. The ionization cross sections in the case of Ba-138 (1P1) were found to be equal for the M = 0 and for the M = + or - 1 sublevels within the experimental error limit.
Document ID
19870037567
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Trajmar, S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Nickel, J. C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Antoni, T.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1986
Publication Information
Publication: Physical Review A - General Physics, 3rd Series
Volume: 34
ISSN: 0556-2791
Subject Category
Atomic And Molecular Physics
Accession Number
87A24841
Distribution Limits
Public
Copyright
Other

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