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Ionization and inelastic energy loss measurements of inner-shell excitations in Kr/sup +/ - Kr and Kr/sup +/ - Xe collisions

Thesis/Dissertation ·
OSTI ID:6247551
The final charge states of the scattered ions and the inelastic energy loss have been measured for single collisions of MeV Kr ions with Kr and Xe targets. The charge states of the scattered ions were measured as functions of scattering angle (from 0.8/sup 0/ to 25/sup 0/) for 0.25, 0.4, 0.6, and 1.0 MeV collision energies for Kr/sup +/ - Kr and 0.4, 0.6, and 1.0 MeV collision energies for Kr/sup +/ - Xe. The total inelastic energy loss of both Kr/sup +/ - Kr and Kr/sup +/ - Xe systems were measured for 0.4, 0.6 and 1.0 MeV collision energies, using the scattered-recoil particle coincidence technique. The results show the dependence of inner-shell excitations on the collisions' distance of closest approach, R/sub 0/. The data confirm the quasimolecular nature of heavy ion-atom collisions within the framework of Fano-Lichten model. New M-shell and possibly L-shell excitations have been observed for the first time. For the Kr - Kr case, excitations at 0.39, 0.3, and .22 A of R/sub 0/ are observed; for the Kr - Xe case, excitations at R/sub 0/ = 0.33, 0.22, and 0.12 are reported. The data show general agreement with the molecular potential calculations of Eichler and co-workers.
Research Organization:
Connecticut Univ., Storrs (USA)
OSTI ID:
6247551
Country of Publication:
United States
Language:
English

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Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
DATA
ELECTRON-PROMOTION MODEL
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY LOSSES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
FLUIDS
GASES
INELASTIC SCATTERING
INFORMATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
KRYPTON
KRYPTON IONS
L SHELL
LOSSES
M SHELL
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 01-10
NONMETALS
NUMERICAL DATA
RARE GASES
SCATTERING
XENON