Angular distribution of Auger-electron emission following double-electron capture in C sup 6+ +He collisions

Journal Article · Wed Jul 01 04:00:00 EDT 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.46.222· OSTI ID:7034880

Fremont, F ^[1]; Sommer, K ^[2]; Lecler, D; Hicham, S; Boduch, P; Husson, X ^[1]; Stolterfoht, N ^[3]

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1. Laboratoire de Spectroscopie Atomique, Institut de Science de la Matiere et du Rayonnement, 14050 Caen CEDEX (France)
2. Hahn-Meitner Institut, Glienicker Strasse 100, D-1000 Berlin 39 (Germany)
3. Laboratoire de Spectroscopie Atomique, Institut de Science de la Matiere et du Rayonnement, 14050 Caen CEDEX (France) Hahn-Meitner Institut, Glienicker Strasse 100, D-1000 Berlin 39 (Germany)

Angular distributions of Auger electrons ejected in 60-keV C{sup 6+}+He collisions were measured. This study extends previous work where cross sections for the production of the configuration 2{ital lnl}{prime} ({ital n}{ge}3) have been determined from measurements at the observation angle of 0{degree} only. For {ital n}=3 and 4, the present angular distributions were measured to be anisotropic, whereas for {ital n}=5 and 6 the electron emissions were found to be isotropic within the experimental uncertainties. The integration over the observation angle yields total production cross sections {sigma}{sub 2{ital l}{ital n}{ital l}} that were found to follow an {ital n}{sup {minus}3} law, in agreement with previous calculations. The observed angular distributions are discussed in terms of different capture mechanisms.

• OSTI ID: 7034880
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 46:1; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ATOM COLLISIONS
AUGER EFFECT
CAPTURE
CARBON
CHARGED PARTICLES
COLLISIONS
DISTRIBUTION
ELECTRON CAPTURE
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
GASES
HELIUM
IONS
ISOTROPY
KEV RANGE
KEV RANGE 10-100
MANY-BODY PROBLEM
MULTICHARGED IONS
NONMETALS
RARE GASES
TWO-BODY PROBLEM