Charge transfer and Penning ionization of N/sub 2/, CO, CO/sub 2/, and H/sub 2/S in proton excited helium mixtures

Journal Article · Sat Oct 01 04:00:00 EDT 1977 · J. Chem. Phys.; (United States)

OSTI ID:7297805

Chen, C H; Judish, J P; Payne, M G

In this work we report on studies of the kinetics of He--N/sub 2/ mixtures excited by a proton beam. The rate of charge transfer from both atomic and molecular helium ions to N/sub 2/ was studied using a time-resolved technique to measure the fluorescence of N/sup +//sub 2/(B /sup 2/..sigma../sup +//sub u/..-->..X /sup 2/..sigma../sub g/). The population of N/sup +//sub 2/(B/sup 2/..sigma../sup +//sub u/) through a Penning ionization process from metastable helium atoms or molecules is observed, and the Penning ionization and charge transfer process which populates this state in a He--N/sub 2/ laser is discussed. The charge transfer rate constants of He/sup +/--CO, He/sup +/--CO/sub 2/, He/sup +/--H/sub 2/S, and He/sup +//sub 2/--CO are also measured.

• Research Organization: Health Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• OSTI ID: 7297805
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 67:7; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATIONS
CHALCOGENIDES
CHARGE EXCHANGE
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
COLLISIONS
CRYOGENIC FLUIDS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
HYDROGEN COMPOUNDS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
HYDROGEN SULFIDES
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONIZATION
IONS
KINETICS
MOLECULE COLLISIONS
NITROGEN
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PENNING EFFECT
REACTION KINETICS
SULFIDES
SULFUR COMPOUNDS