INVESTIGATION OF THE INCEPTION PHASE OF ATOM-ATOM IONIZATION IN THE RARE GASES.
Abstract
The inception phase of shock-heated krypton was investigated in a two inch square aluminum shock tube using two transverse microwave probes operating at 9.8 GHz and 14.7 GHz. Shock waves of Mach number 7.5 to 10 were propagated into ambient krypton at pressures of 5, 10, and 20 torr. Gas temperatures produced were between 5750K and 7850K. Shock tube impurity levels were in the 0.0000001 range which were well below impurity levels of the research grade test gases as analyzed using a mass spectrometer. The microwave data were reduced to yield the free electron density and effective electron collision frequency variation after passage of the shock wave. An electrostatic probe was also used to measure electron density for a few experiments. The electrostatic probe data agreed with the microwave data after the probe data were corrected for Debve shielding effects. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1970
- Accession Number
- AD0709701
Entities
People
- Kenneth E. Harwell
- Kenneth O. West
Organizations
- Auburn University