[Electron transfer, ionization, and excitation in atomic collisions]. [Pennsylvania State Univ]

Technical Report · Wed Jan 01 00:00:00 EST 1992

DOI:https://doi.org/10.2172/6965646· OSTI ID:6965646

Fundamental processes of electron transfer, ionization, and excitation in ion-atom and ion-ion collisions are studied. Attention is focussed on one- and two-electron systems and, more recently, quasi-one-electron systems whose electron-target-ion core can be accurately modeled by one-electron potentials. The basic computational approaches can then be taken with few, if any, approximations, and the underlying collisional mechanisms can be more clearly revealed. At intermediate collision energies (e.g., proton energies for p-He[sup +] collisions on the order of 100 kilo-electron volts), many electronic states are strongly coupled during the collision, a coupled-state approach, such as a coupled-Sturmian-pseudostate approach, is appropriate. At higher collision energies (million electron-volt energies) the coupling is weaker with, however, many more states being coupled together, so that high-order perturbation theory is essential.

• Research Organization: Pennsylvania State Univ., University Park, PA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-86ER13549
• OSTI ID: 6965646
• Report Number(s): DOE/ER/13549-7; ON: DE93005918
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ION-ATOM COLLISIONS
RESEARCH PROGRAMS
ION-ION COLLISIONS
CARBON
ELECTRON TRANSFER
EXCITATION
HELIUM IONS
HYDROGEN IONS 1 PLUS
IONIZATION
KEV RANGE 10-100
MATHEMATICAL MODELS
MEV RANGE
PERTURBATION THEORY
PROGRESS REPORT
ATOM COLLISIONS
CATIONS
CHARGED PARTICLES
COLLISIONS
DOCUMENT TYPES
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
HYDROGEN IONS
ION COLLISIONS
IONS
KEV RANGE
NONMETALS
664300* - Atomic & Molecular Physics- Collision Phenomena- (1992-)