Actions for MICROWAVE DIAGNOSTICS IN ARC RESEARCH. On Determination of Physical Quantities of Gas Discharges in Ion-Containment Machines by Measurement of Microwave Propagation Coefficient

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MICROWAVE DIAGNOSTICS IN ARC RESEARCH. On Determination of Physical Quantities of Gas Discharges in Ion-Containment Machines by Measurement of Microwave Propagation Coefficient

Author
Post, R. F.
Published
United States : [publisher not identified], 1955.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1955.
Physical Description
microopaque : positive ; 8 x 13 cm
Additional Creators
Prosser, T. F. and Wharton, C. B.

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Summary
A method for determining semi-quantitatively the time-varying plasma density in magnetic mirror machines by microwave phase-shift and attenuation measurements is described. Propagation and reflection equations are derived for the cases when the incident frequency is (a) less than plasma frequency, (b) equal to plasma frequency, and (c) greater than plasma frequency. Equations for phase shift as a function of density (using case c) in mirror machines are derived and results plotted in a generalized curve. Experiments conducted during 1952 through April 1955 are described, and typical results obtained from some of the mirror machines are presented. Densities measurable were in the range 10/sup 10/cc to 10/sup 14/cc. Some correlation with probe measuremaents is indicated. Continuing experiments are outlined, and future plans and proposals for making plasma-density and temperature measurements are indicated. (auth)
Report Numbers
UCRL-4477
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: W-7405-ENG-48
NSA number: NSA-13-005445
OSTI Identifier 4277093
Research organization: California. Univ., Livermore. Radiation Lab.
View MARC record | catkey: 42517731