Distribution of internal energy in the products of the reactions of 100 eV He/sup +/ with Xe

Journal Article · Fri Aug 01 04:00:00 EDT 1980 · J. Chem. Phys.; (United States)

OSTI ID:5239517

Jones, E G; Tiernan, T O; Fee, D C; Hughes, B M

The luminescence spectrum in the range from 50 to 890 nm which results from collision of a 100 eV beam of ground state He/sup +/ ions with Xe has been investigated. All observed emissions can be classified as Xe II transitions. Corrections of the spectra for cascading (amounting to about 30% of the total emission cross section) have been made in order to derive cross sections for direct production of Xe/sup +asterisk/ in the bimolecular collision. Comparisons of the cross section for radiative state production with the total cross section for charge transfer indicate that excited Xe/sup +asterisk/ states are formed with high efficiency. The internal energy distribution of Xe/sup +asterisk/ products maximizes at an energy corresponding to the conversion of <1 eV of translational energy into internal energy. For the near-resonant charge transfer reactions studied, a propensity to conserve the projection along the internuclear axis of the total electronic angular momentum is observed. The significance of the distribution of Xe/sup +asterisk/ states and the effects of kinetic energy are discussed.

• Research Organization: Department of Chemistry and The Brehm Laboratory, Wright State University, Dayton, Ohio 45435
• OSTI ID: 5239517
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 73:3; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular &amp; Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAMS
CHARGE EXCHANGE
COLLISIONS
ELEMENTS
EMISSION SPECTRA
ENERGY RANGE
ENERGY SPECTRA
ENERGY-LEVEL TRANSITIONS
EV RANGE
EV RANGE 10-100
HELIUM IONS
ION BEAMS
ION COLLISIONS
ION-ATOM COLLISIONS
NONMETALS
RARE GASES
SPECTRA
XENON