RESEARCH ON CROSSED-FIELD ELECTRON DEVICES.
Abstract
Pulsed operation of the S-band amplifier using an abbreviated Kino gun resulted in a maximum gain of approximately 20 db. Attempts at cw operation resulted in large interception of the beam by the slow-wave circuit with the subsequent melting of several fingers of the line. Replacement of the circuit by a three-segment planar anode resulted in good d-c transmission although spurious oscillations were present over a wide frequency range. Computer calculations of the noise-parameter variations as a function of frequency and position along the beam were carried out for a crossed-field drift region. Experimental investigations with various gun geometries resulted in intrinsic oscillations which could be suppressed by the application of a signal near the cathode. The oscillations appeared to originate in the near-cathode region. A modified aperture system was designed for the investigation of crossed-field electron beams in the beam analyzer. The beam analyzer and associated components are being adapted to allow the investigation of space-charge flows when they are subjected to interaction with an r-f wave.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1965
- Accession Number
- AD0625438
Entities
People
- D. D. Khandelwal
- K. F. Morman
- N. A. Masnari
- S. G. Lele
- T. A. Demassa
Organizations
- University of Michigan