Accession Number:

AD0254709

Title:

PRODUCTION AND INTERACTIONS OF ELECTRON BEAMS IN CROSSED FIELDS

Descriptive Note:

Corporate Author:

CALIFORNIA UNIV BERKELEY ELECTRONICS RESEARCH LAB

Personal Author(s):

Report Date:

1960-10-31

Pagination or Media Count:

1.0

Abstract:

Production and turbulence of self-sustained, multimegawatt, crossed-field electron beams are studied in the smooth-anode magnetron with cold cathode. A description of turbulence, based on slipping-stream instabilities resulting from velocity shear in the beam, is formulated in terms of simple diffusion relationships. The theory accounts for cathode bombardment, transverse diffusion, violation of magnetron cutoff, and other observed characteristics and agrees quantitatively with experiment. RF interaction with the high-powerbeams that may be produced is studied for a class of anode structures based upon space-harmonic interaction principles. Several structures are discussed that show promise of obtaining high-efficiency coherent-phase interaction over areas large compared to a wavelength. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE