Photodetachment of He{sup -} near the 1s threshold: Absolute cross-section measurements and postcollision interactions

Journal Article · Tue Mar 14 23:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.0· OSTI ID:20787015

Bilodeau, R C ^[1]; Bozek, J D; Ackerman, G D ^[2]; Aguilar, A ^[2]; Berrah, N ^[1]

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1. Physics Department, Western Michigan University, Kalamazoo, Michigan 49008-5151 (United States)
2. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

Inner-shell photodetachment of He{sup -} is studied near the He{sup -} 1s2s2p {sup 4}P{sup o}{yields}He 2s2p {sup 3}P{sup o} threshold. The spectrum over this region shows significant suppression of He{sup +} signal production due to postcollision interaction (PCI) effects. The observed shape and absolute cross section are in general agreement with theoretical predictions when corrections for semiclassical PCI effects are included.

• OSTI ID: 20787015
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 73; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANIONS
CORRECTIONS
CROSS SECTIONS
ELECTRON DETACHMENT
ENERGY LEVELS
HELIUM IONS
INNER-SHELL IONIZATION
PHOTON-ATOM COLLISIONS
SEMICLASSICAL APPROXIMATION
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA