• DocumentCode
    853789
  • Title

    Photodetachment Cross Sections for He-(4P°)

  • Author

    Compton, R.N. ; Alton, G.D. ; Pegg, D.J.

  • Author_Institution
    Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
  • Volume
    28
  • Issue
    2
  • fYear
    1981
  • fDate
    4/1/1981 12:00:00 AM
  • Firstpage
    1198
  • Lastpage
    1202
  • Abstract
    We report the first measurements of photodetachment cross sections for He- (formed through charge exchange of He+ with Ca vapor) over the photon energy range from 1.77 to 2.75 eV. The energies of auto-detached electrons from the metastable He beam have also been determined for the first time. The autodetached electron energy agrees within experimental error (±0.25 eV) with the known 1s2s2p)4P° He- energy level. This taken with measurements for the lifetime of He- infers that change exchange of He+ with Ca vapor produces 4P° He-.
  • Keywords
    Charge measurement; Current measurement; Electron beams; Energy measurement; Energy states; Helium; Laboratories; Mass spectroscopy; Metastasis; Physics;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/TNS.1981.4331378
  • Filename
    4331378
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=853789