Time-of-flight spectroscopy of molecular structure, collision processes, and gas-surface interactions. Annual technical report, 15 June 1980-14 June 1981

Technical Report · Wed Jul 15 04:00:00 EDT 1981

OSTI ID:5496067

Lamb, Jr, W E; McIntyre, Jr, L C

Progress is reported on research in molecular physics involving electron-bombardment molecular dissociation. The velocity distribution of metastable and ionic fragments are measured using a pulsed electron beam and a time-of-flight technique. Fragments from the hydrogen molecule and its deuterated forms have been investigated using electron energies from 30 to 100 electron-volts. Dissociation channels via particular molecular or molecular ion excited states have been proposed to explain observed features in the velocity spectra. A similar experiment involving hydrogen fragments from the hydrogen halides is also in progress. Preliminary data show several resolved velocity groups indicating the presence of multiple dissociating channels. Experiments using water and hydrogen sulfide molecules are also underway. Finally, we are continuing to develop our ion mass filter which allows us to obtain separate ion velocity distributions for each mass in a situation in which several ion masses are present.

• Research Organization: Arizona Univ., Tucson (USA). Optical Sciences Center
• OSTI ID: 5496067
• Report Number(s): AD-A-105438/6
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
DEUTERIDES
DEUTERIUM COMPOUNDS
DEUTERIUM TRITIDES
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY LEVELS
EXCITED STATES
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN DEUTERIDE
LABELLED COMPOUNDS
MOLECULE COLLISIONS
NONMETALS
TIME-OF-FLIGHT METHOD
TRITIUM COMPOUNDS