An Experimental Study of the Interaction of Moderate Power Microwaves with Electron Density Gradients.
Abstract
The paper presents the results of an experiment which examines the interaction of a moderate power microwave signal with an inhomogeneous electron density gradient. The result of this interaction is a self-shielding plasma, generated by the absorption of 10 GHz microwaves, which propagates toward the energy source at a velocity which is a function of pressure, type of gas and incident heating field intensity. These results are essentially in agreement with the shock tube work of Bethke (1969) but are extended to show new and interesting effects of applying a transverse dc magnetic field to the test section. Magnetic field results suggest that heating of the electron gas occurs at the hybrid resonance frequency at magnetic fields below cyclotron, and propagation of the extraordinary mode is inhibited at low magnetic fields. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 16, 1972
- Accession Number
- AD0746677
Entities
People
- Daniel J. Jacavanco
Organizations
- Air Force Cambridge Research Laboratories