Dissociative ionization of H/sub 2/ and D/sub 2/ produced by bombardment with fast He/sup +/ ions. [0. 5 to 4 MeV]

Journal Article · Fri Apr 01 04:00:00 EST 1977 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.15.1433· OSTI ID:7120296

Wood, R M; Edwards, A K; Steuer, M F

H/sup +/ and D/sup +/ energy spectra have been obtained using the time-energy spectroscopy technique. Spectra are presented for He/sup +/ bombarding energies of 0.5, 1, 2, 3, and 4 MeV. The reflection approximation is used to analyze the spectra and determine the relative contribution to the H/sup +/ and D/sup +/ yields of the 1ssigma/sub g/, 2psigma/sub u/, 2p..pi../sub u/, 2ssigma/sub g/, and double-ionization potential curves of the target molecules. Yield observed in the 2- to 4-eV range suggests that states of H/sub 2/ and D/sub 2/ which autoionize to the dissociative continuum of the ground 1ssigma/sub g/ state of H/sup +//sub 2/ and D/sup +//sub 2/ contribute to the spectra. The yield is dominated by the excitation of the 2psigma/sub u/, 2p..pi../sub u/, and double-ionization potential curves.

• Research Organization: Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602
• OSTI ID: 7120296
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 15:4; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
BEAMS
COLLISIONS
CRYOGENIC FLUIDS
DEUTERIUM
DISSOCIATION
ELEMENTS
ENERGY RANGE
ENERGY SPECTRA
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
HELIUM IONS
HYDROGEN
HYDROGEN ISOTOPES
ION BEAMS
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONIZATION
ISOTOPES
LIGHT NUCLEI
MEV RANGE
MEV RANGE 01-10
MOLECULE COLLISIONS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
SPECTRA
STABLE ISOTOPES