Absolute doubly differential cross sections for electron emission in collisions of 3. 5-MeV/u Fe sup 17+ and Fe sup 22+ ions with He and Ar gas targets

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

DOI:https://doi.org/10.1103/PhysRevA.46.1296· OSTI ID:7286203

Schneider, D H; DeWitt, D R; Bauer, R W ^[1]; Mowat, J R ^[2]; Graham, W G ^[3]; Schlachter, A S ^[4]; Skogvall, B ^[5]; Fainstein, P ^[6]; Rivarola, R D ^[7]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
2. North Carolina State University, Raleigh, North Carolina 29695 (United States)
3. Queen's University, Belfast, Northern Ireland (United Kingdom)
4. Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
5. Hahn-Meitner Institut, 1000 Berlin 39 (Germany)
6. Centro Atomico Bariloche and Instituto Balseiro, 8400 Bariloche (Argentina)
7. Instituto de Fisica Rosario, Consejo Nacional de Investigaciones Cientificas y Tecnicas ( ) Universidad Nacional de Rosario, Rosario (Argentina)

Absolute doubly differential cross sections have been measured as a function of electron energy and angle of observation for electron emission in collisions of 3.5-MeV/u Fe{sup 17+} and Fe{sup 22+} ions with He and Ar gas targets under single-collision conditions. The measured electron emission cross sections are compared to theoretical and scaled cross sections based on the Born approximation. The results using intermediate-mass ions are discussed with reference to previously reported cross sections from collisions with highly charged lighter- and heavier-ion species at MeV/u projectile energies. The continuum--distorted-wave--eikonal-initial-state approximation shows good agreement with experiments except in the binary-encounter peak'' where the interaction between projectile electrons and target electrons could play an important role.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7286203
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 46:3; 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
ARGON
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRON EMISSION
ELECTRON LOSS
ELEMENTS
EMISSION
ENERGY DEPENDENCE
ENERGY RANGE
FLUIDS
GASES
HELIUM
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
IRON IONS
MEV RANGE
MULTICHARGED IONS
NONMETALS
RARE GASES