Time-of-Flight Spectroscopy of Molecular Structure, Collision Processes, and Gas-Surface Interactions

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 f...

Full description

Saved in:
Bibliographic Details
Main Authors: Lamb,Willis E , Jr, McIntyre,Laurence C , Jr
Format: Report
Language:English
Subjects:
COLLISIONS
DISTRIBUTION
ELECTRON BEAMS
ELECTRON ENERGY
ELECTRON SPECTROSCOPY
FLIGHT
FRAGMENTS
GASES
HYDROGEN
INTERACTIONS
ION BOMBARDMENT
IONS
MASS
MOLECULAR IONS
MOLECULAR STRUCTURE
Particle Accelerators
PE61102F
PULSES
SPECTRA
SURFACES
TIME
VELOCITY
WUAFOSR2301A4
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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. (Author)