Ion-electron coincidence measurements of the azimuthal dependence of electrons from autoionizing He atoms excited in 2000-eV He/sup +/-He collisions

Journal Article · Mon Mar 06 04:00:00 EST 1978 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.40.645· OSTI ID:5034277

Kessel, Q C; Morgenstern, R; Mueller, B; Niehaus, A; Thielmann, U

The azimuthal angular dependence and corresponding energy spectra have been measured for electrons ejected at 135/sup 0/from the beam direction by autoionizing He atoms in the (2p/sup 2/)/sup 1/D and (2s2p)/sup 1/P states, which were excited by 2000-eV He/sup +/ ions scattered through 6/sup 0/. The data show a marked dependence on the azimuthal angle of the scattered projectile and are used to calculate the moduli and phases of the population amplitudes of the magnetic sublevels excited.

• Research Organization: Fakultaet fuer Physik der Universitaet Freiburg, D-78 Freiburg im Breisgau, West Germany
• OSTI ID: 5034277
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 40:10; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
ATOM COLLISIONS
AUTOIONIZATION
BEAMS
COLLISIONS
CRYOGENIC FLUIDS
DISTRIBUTION
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
HELIUM
HELIUM IONS
ION BEAMS
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
KEV RANGE
KEV RANGE 01-10
NONMETALS
RARE GASES