Photodetachment cross sections for He/sup -/(/sup 4/P/sup 0/)
Conference
·
OSTI ID:7026610
The first measurements are reported of photodetachment cross sections for He/sup -/ (formed through charge exchange of He/sup +/ with Ca vapor) over the photon energy range from 1.77 to 2.75 eV. The energies of autodetached electrons from the metastable He/sup -/ beam have also been determined for the first time. The autodetached electron energy agrees within experimental error (+-0.25 eV) with the known 1s2s2p)/sup 4/P/sup 0/ He/sup -/ energy level. This taken with measurements for the lifetime of He/sup -/ infers that charge exchange of He/sup +/ with Ca vapor produces /sup 4/P/sup 0/ He/sup -/.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 7026610
- Report Number(s):
- CONF-801111-25
- Country of Publication:
- United States
- Language:
- English
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