Photodetachment studies on few-electron atomic negative ions. [[approx] 2 eV]

Conference · Tue Dec 31 23:00:00 EST 1991

OSTI ID:6770233

Pegg, D J

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: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG05-85ER13456
• OSTI ID: 6770233
• Report Number(s): DOE/ER/13456-50; CONF-9210339--1; ON: DE93008474
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
AFFINITY
ANIONS
BEAMS
BERYLLIUM IONS
BORON IONS
CHARGED PARTICLES
COLLIDING BEAMS
COLLISIONS
CROSS SECTIONS
DATA
ELECTRON DETACHMENT
ENERGY RANGE
EV RANGE
EV RANGE 01-10
EXPERIMENTAL DATA
INFORMATION
ION COLLISIONS
IONS
LITHIUM IONS
NUMERICAL DATA
PHOTON COLLISIONS
PHOTON-ION COLLISIONS