Accession Number:

AD0600302

Title:

FEASIBILITY OF BEAM-PLASMA AMPLIFICATION OF MILLIMETER WAVES.

Descriptive Note:

Quarterly progress rept. no. 4, 15 Nov 62-15 Feb 63,

Corporate Author:

MICROWAVE ASSOCIATES INC BURLINGTON MASS

Personal Author(s):

• Chorney,Paul

Report Date:

1963-02-15

Pagination or Media Count:

19.0

Abstract:

Beam-plasma-amplifier experiments are described which are being performed with the metal-ceramic X-band study vehicle. Net gains of 30 db and greater have been obtained using a xenon plasma experiments using argon, nitrogen and vacuum are also described. The life test performed on a hollow cathode gun has concluded, the total useful life of the gun being about 400 hours. More plasma density measurements have been performed on a mercury P. I. G. discharge with a Langmuir probe. The results show that plasma frequencies near 70 Gc have been obtained and that the radial density profile of the plasma is very uniform over a large center portion. The observations of anomalous diffusion in a magnetic field is also pointed out. The progress in the design of the 70 Gc beam-plasma-amplifier study vehicle is described. Results of cavity cold tests and tests on mica vacuum windows are outlined. A gun model has been contructed which is designed to deliver an .008 in. diameter electron beam. Author

Descriptors:

• (*MICROWAVE AMPLIFIERS
• PLASMAS(PHYSICS))
• (*PLASMAS(PHYSICS)
• MICROWAVE AMPLIFIERS)
• MILLIMETER WAVES
• X BAND
• NITROGEN
• ARGON
• XENON
• ELECTRON GUNS
• CATHODES
• CERMETS
• TEST EQUIPMENT

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE