Observation of enhanced emission of cusp electrons at impact of excited metastable neutral He projectiles

Journal Article · Wed Sep 01 04:00:00 EDT 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.48.R1745· OSTI ID:6214537

Kuzel, M ^[1]; Sarkadi, L; Palinkas, J; Zavodszky, P A ^[2]; Maier, R ^[1]; Berenyi, D ^[2]; Groeneveld, K O ^[1]

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1. Institut fuer Kernphysik der J. W. Goethe-Universitaet, August-Euler Strasse 6, D-6000 Frankfurt am Main (Germany)
2. Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, H-4001 Debrecen (Hungary)

The contribution of excited metastable He projectiles to the production of the forward electron cusp peak has been measured for bombardment of Ar by 400-keV neutral He atoms using the technique of collisional quenching to control the metastable fraction of the beam. The cross section for the production of cusp electrons via target ionization by metastable He atoms has been found to be about 10 times larger than the cross section for the same process for ground-state projectiles.

• OSTI ID: 6214537
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 48:3; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
ATOMIC BEAMS
BEAMS
COLLISIONS
CROSS SECTIONS
ELECTRON EMISSION
ELEMENTS
EMISSION
ENERGY LEVELS
EXCITED STATES
FLUIDS
GASES
GROUND STATES
HELIUM
METASTABLE STATES
NONMETALS
PROJECTILES
RARE GASES