Azimuthal angular dependence of recoil-ion and electron emission in 0. 5-MeV [ital p] + He collisions

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

DOI:https://doi.org/10.1103/PhysRevA.47.3845· OSTI ID:6873168

Doerner, R ^[1]; Ullrich, J ^[2]; Olson, R E ^[3]; Jagutzki, O; Schmidt-Boecking, H ^[1]

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1. Institut fuer Kernphysik, Universitaet Frankfurt, D-6000 Frankfurt am Main (Germany)
2. Gesellschaft fuer Schwerionenforschung, D-6100 Darmstadt (Germany)
3. Department of Physics, University of Missouri-Rolla, Rolla, Missouri 65401 (United States)

Measurements and [ital n]-body classical-trajectory Monte Carlo calculations are presented for the dependence of recoil-ion emission on the azimuthal angle between a projectile and a recoil ion. From the measured momenta of the projectile and the recoil ion, the dependence of the electron emission on the azimuthal angle between projectile and electron is deduced. The recoil ions are found to be emitted to the opposite direction of the scattered projectile only for scattering angles larger than 1 mrad, while for smaller scattering angles, the momentum of the emitted electron results in a broad azimuthal angular distribution of the recoil ions. For a scattering angle of 0.55 mrad, the electrons are predominantly emitted opposite to the scattered projectile, yielding a direct proof of a binary encounter between projectile and electron.

• OSTI ID: 6873168
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 47:5; 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
ANGULAR DISTRIBUTION
ATOM COLLISIONS
BARYONS
CALCULATION METHODS
COLLISIONS
DISTRIBUTION
ELECTRON EMISSION
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY RANGE
FERMIONS
FLUIDS
GASES
HADRONS
HELIUM
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
KEV RANGE
KEV RANGE 100-1000
MONTE CARLO METHOD
NONMETALS
NUCLEONS
PROTONS
RARE GASES
RECOILS
TRAJECTORIES