Diffraction effects in the production of binary encounter electrons emitted in collisions of heavy ions with He and H[sub 2] targets

Conference · Sat Jun 05 04:00:00 EDT 1993 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5565711

Shinpaugh, J L; Wolf, H E; Wolff, W; Schmidt-Boecking, H ^[1]; Wang, J; Olson, R E ^[2]

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1. Institut fuer Kernphysik, Universitaet Frankfurt, August-Euler-Str. 6, 6000 Frankfurt/M. 90 (Germany)
2. Physics Department, University of Missouri at Rolla, Rolla, Missouri 65401 (United States)

Relative double differential cross sections for electron emission in collisions of I[sup [ital q]+] and Xe[sup [ital q]+] projectile ions incidence on H[sub 2] and He targets are presented for observation angles of 0[degree] to 60[degree] with respect to the beam. The measurements were performed over a wide range of projectile velocities (0.6 to 3.6 MeV/amu) and charge states (q=7 to 23). As the velocity or charge state of the projectile are decreased, drastic changes in the behavior of the binary encounter peak can be observed. These effects can be attributed to diffraction of the target electrons by the non-Coulomb potential of the clothed projectile ion. A theoretical treatment of the double differential cross sections has been developed where the binary encounter electrons are treated within the impulse approximation as the elastic scattering of quasi-free target electrons by the screened potential of the projectile ion.

• OSTI ID: 5565711
• Report Number(s): CONF-920948--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 274:1
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CHARGED PARTICLES
COHERENT SCATTERING
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DIFFRACTION
ELECTRON DIFFRACTION
ELECTRON EMISSION
ELEMENTS
EMISSION
ENERGY RANGE
FLUIDS
GASES
HELIUM
HYDROGEN
IODINE IONS
ION COLLISIONS
ION-ATOM COLLISIONS
ION-MOLECULE COLLISIONS
IONS
MEV RANGE
MOLECULE COLLISIONS
MULTICHARGED IONS
NONMETALS
RARE GASES
SCATTERING
XENON IONS