Photodetachment studies on few-electron atomic negative ions
A crossed laser-negative ion beams apparatus, situated at Oak Ridge National Laboratory has been used for energy and angle-resolved photoelectron spectroscopic measurements following photodetachment. In the current grant period measurements of the cross sections for photodetaching an electron from the Li{sup {minus}} ion were finished. Measurements of the {sigma}(B{sup {minus}})/{sigma}(Li{sup {minus}}) ratio, with a goal of determining photodetachment cross section for B{sup {minus}}, were started. An investigation of the photodetachment of the metastable ion Be{sup {minus}} also began. Preliminary data on the electron affinity, asymmetry parameter and cross section associated with the photodetachment of Be{sup {minus}} at a photon energy of 2.076 eV is reported.
- Research Organization:
- Tennessee Univ., Knoxville, TN (United States). Dept. of Physics
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG05-85ER13456
- OSTI ID:
- 10146759
- Report Number(s):
- DOE/ER/13456--50; CONF-9210339--1; ON: DE93008474
- Country of Publication:
- United States
- Language:
- English
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