Velocity dependence of the cross sections for Penning and associative ionization of H atoms by He(2 /sup 1/S) metastable atoms
Journal Article
·
· Phys. Rev., A; (United States)
The velocity dependence of the Penning and associative ionization cross sections for the He(2 /sup 1/S) + H interacting system is measured for the relative velocity range 1900--5300 m/sec in a crossed-beam experiment by a time-of-flight technique. We observe that the total ionization cross section decreases monotonically with increasing kinetic energy, and that associative ionization is a minor process, contrary to some theoretical predictions made for the He(2 /sup 1/S) + H system. (AIP)
- Research Organization:
- Service de Physique Atomique, Centre d'Etudes Nucleaires de Saclay, B. P. No.2-91190 Gif-sur-Yvette, France
- OSTI ID:
- 7359938
- Journal Information:
- Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 14:2; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Velocity dependence of the cross sections for Penning and associative ionization of H and D atoms by He(2 /sup 3/S) metastable atoms
Velocity dependence of the Penning and associative ionization cross sections of Ar atoms by He(2{sup 3}S) and He(2{sup 1}S) atoms
Velocity dependence of the cross sections for Penning, rearrangement, and total ionization of H/sub 2/ and D/sub 2/ molecules by He (2/sup 3/S) and He (2/sup 1/S) metastable atoms
Journal Article
·
Tue Oct 31 23:00:00 EST 1978
· Phys. Rev., A; (United States)
·
OSTI ID:6853615
Velocity dependence of the Penning and associative ionization cross sections of Ar atoms by He(2{sup 3}S) and He(2{sup 1}S) atoms
Conference
·
Mon Sep 01 00:00:00 EDT 1975
·
OSTI ID:4953256
Velocity dependence of the cross sections for Penning, rearrangement, and total ionization of H/sub 2/ and D/sub 2/ molecules by He (2/sup 3/S) and He (2/sup 1/S) metastable atoms
Journal Article
·
Tue Oct 31 23:00:00 EST 1978
· Phys. Rev., A; (United States)
·
OSTI ID:6853601
Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
ATOMIC BEAMS
BEAMS
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUIDS
HELIUM
HYDROGEN
IONIZATION
METASTABLE STATES
NONMETALS
PENNING EFFECT
RARE GASES
TIME-OF-FLIGHT METHOD
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
ATOMIC BEAMS
BEAMS
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUIDS
HELIUM
HYDROGEN
IONIZATION
METASTABLE STATES
NONMETALS
PENNING EFFECT
RARE GASES
TIME-OF-FLIGHT METHOD