DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
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
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
Distribution Statement:
APPROVED FOR PUBLIC RELEASE