ANTENNA WINDOW: A TECHNIQUE FOR PROPAGATION THROUGH A PLASMA SHEATH
Abstract
A double microwave reflectometer probe was designed and developed for measuring the properties of dense plasmas. It was to measure the properties of plasmas having up to 10 to the 16th power electrons per cc and collision frequencies up to 10 to the 12th power per sec. The system and its theory of operation are discussed. Measurements of the effect of a magnetic field on the transmission and reflection characteristics of a plasma slab were made. The measured values of transmission-loss check well with those predicted from the measured plasma properties and linear theory while the reflection coefficient is a function of power level. A theoretical justification is given for this linear transmission-nonlinear reflection phenomenon. The curves of stagnation point N, Nu and shock stand-off distance given in the Interim Engineering Report #2 were extended to a 50 lb Trailblazer II payload. Design of the instrumentation for the forthcoming flight tests was begun.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1962
- Accession Number
- AD0273740
Entities
People
- Robert G. Delosh