Vaporization Kinetics and Thermodynamics of Graphite Using the High Pressure Mass Spectrometer.
Technical management rept. no. 3, 1 Dec 71-29 Feb 72,
MIDWEST RESEARCH INST KANSAS CITY MO
Pagination or Media Count:
The research concerns characterizing the nature and thermodynamics of species evaporating from graphite. Several equipment modifications are described which are designed to increase the time response of the bean-chopper reference signal. The major reseach effort was concerned with attempts to understand the rather puzzling and unexpected results obtained in time-of-flight velocity analysis of carbon vapor species. Ions from carbon vapor as well as several consensible gases, showed double humped time-of-arrival peaks. Ion source trapping in the Nuclide double-aperture ion source seems definitely to be involved, but simple trapping alone does not appear to account for the behavior of the C3 ion.
- Atomic and Molecular Physics and Spectroscopy