Dynamics of electron removal from helium and molecular hydrogen by collisions with heavy particles

Miscellaneous · Wed Jan 01 00:00:00 EST 1992

OSTI ID:7270624

Meng, L

Collision systems involving the simplest two-electron targets, helium and molecular hydrogen, have been studied, as part of ongoing research on the effect of electron correlation in ion-atom collisions. Classical phase-space models of the hydrogen molecule and helium are utilized to study electron-capture and ionization processes in collisions of fully stripped ions at intermediate-to-high impact energies (20 keV/u 1 MeV/u) and charge states from 1 to 10. Subshell-capture processes are also studied. A radial correlation between the electrons in helium is implemented in the Classical Trajectory Monte Carlo (CTMC) technique and represents the first theoretical method that yields the dynamics of all four bodies in single and double ionization reactions in the collisions of protons and antiprotons with helium. Good agreement with experimental results are obtained. This work leads to a better understanding of the effect of electron correlation for collisions with two-electron systems.

• Research Organization: Missouri Univ., Rolla, MO (United States)
• OSTI ID: 7270624
• Resource Relation: Other Information: Thesis (Ph.D.)
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HELIUM
ELECTRON CAPTURE
IONIZATION
HYDROGEN
ION-ATOM COLLISIONS
ELECTRON CORRELATION
KEV RANGE 10-100
KEV RANGE 100-1000
ATOM COLLISIONS
CAPTURE
COLLISIONS
CORRELATIONS
ELEMENTS
ENERGY RANGE
FLUIDS
GASES
ION COLLISIONS
KEV RANGE
NONMETALS
RARE GASES
664300* - Atomic & Molecular Physics- Collision Phenomena- (1992-)