Study of molecular hydrogen dissociation at low keV energies

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5577024

Montgomery, D L

The dissociations of molecules are investigated theoretically for the diatomic breakup of H/sub 2//sup +/ following collisions between He/sup +/ and H/sub 2/, and investigated experimentally for the triatomic breakup of H/sub 3//sup +/ following H/sub 3//sup +/ collisions with He. A three particle coincidence experiment is proposed and analyzed for the purpose of studying the reaction He/sup +/ + H/sub 2/ ..-->.. He + H/sub 2//sup +/ ..-->.. He + H(2p) + H/sup +/. This experiment is designed to better define the final state of the system. The three particles to be detected in coincidence are: the scattered He, the proton, and the L/sub alpha/ photon including its polarization. A theory of measurement is developed that interprets the polarization data in terms of amplitudes and phase differences which are defined in the molecular frame. This theory includes the fine and hyperfine structure of the atomic excited states, the rotational states of the molecule, the orientation in the lab frame of the H/sub 2//sup +*/ after collision and the molecular potential energies to describe the final state following the dissociation of H/sub 2//sup +/. Since the general result is so complex, the radiation intensity equation is explicitly written out only for the three specific cases when the H/sub 2//sup +*/ is parallel to the lab X-, Y-, and Z-axes after the collision.

• Research Organization: Nebraska Univ., Lincoln (USA)
• OSTI ID: 5577024
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
BARYONS
CHARGED PARTICLES
COLLISIONS
DISSOCIATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
FERMIONS
FLUIDS
GASES
HADRONS
HELIUM
HELIUM IONS
HYDROGEN
HYPERFINE STRUCTURE
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
KEV RANGE
MASSLESS PARTICLES
MOLECULE COLLISIONS
MOLECULES
NONMETALS
NUCLEONS
PHOTONS
POLARIZATION
POTENTIAL ENERGY
PROTONS
RARE GASES