Accession Number : AD0600542

Title :   ENHANCEMENT OF PLASMA DENSITY IN AN ARC DISCHARGE.

Descriptive Note : Technical rept. no. 64,

Corporate Author : MICHIGAN UNIV ANN ARBOR ELECTRON PHYSICS LAB

Personal Author(s) : Singh,A. ; Rowe,J. E.

Report Date : FEB 1964

Pagination or Media Count : 32

Abstract : The use of an electron beam-plasma interaction scheme for the generation and/or amplification of coherent signals in the millimeter wavelength regime requires the creation of a high density stable plasma. A plasma density of approximately 10 to the 15th power particles/cc is required to produce a plasma resonance frequency of 300 Gc. The density in an arc discharge plasma was increased using mechanical and magnetic constriction methods. A density of 7.5 x 10 to the 14th power particles/cc is realized at a discharge current of 4 amperes in argon. Double Langmuir probe measurements of density and temperature in the plasma are presented for zero and finite magnetic field conditions. (Author)

Descriptors :   (*PLASMAS(PHYSICS), ELECTRON BEAMS), (*GAS DISCHARGES, DENSITY), SIGNALS, MAGNETIC FIELDS, ARGON, MICROWAVES

Distribution Statement : APPROVED FOR PUBLIC RELEASE