Accession Number:

ADA126990

Title:

Large Amplitude Ion Waves.

Descriptive Note:

Final rept. Jun 77-Jan 82,

Corporate Author:

DARTMOUTH COLL HANOVER N H DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s):

Report Date:

1982-11-19

Pagination or Media Count:

258.0

Abstract:

Cerenkov Masers, which are mildly relativistic 100-200 KV, moderate-current, electron-beam 1-20A-driven dielectric resonators, have been used to produce multihendred KW power levels in the middle part of the mm wavelength range. The devices make use of the fact that the evanescence scale length in the transverse direction of a slow wave is given by lambdabetagamma lambda - wavelength, beta - velocity measured in units of the speed of light, gamma 1sg. root of1-beta squared. The scaling lambdabetagamma approx. 1 will maintain good beam-to-wave-coupling in the mm range, while also maintaining convenient transverse resonator dimension. A variety of configurations and modifications are considered and discussed in detail. All experimental results presented pertain to oscillator configurations of the basic device. The basic interaction can, however, be used as the basis of an amplifier and a theoretical analysis of such a device is presented.

Subject Categories:

  • Electrical and Electronic Equipment
  • Particle Accelerators
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE