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:

1964-02-01

Pagination or Media Count:

32.0

Abstract:

The use of an electron beam-plasma interaction scheme for the generation andor 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 particlescc 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 particlescc 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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE