RESEARCH AND DEVELOPMENT ON HIGH-POWER CRESTATRONS FOR THE 100-300 MC FREQUENCY RANGE
Abstract
Research was continued on a development program on high-power 100-300 mc Crestatrons. The aim is to construct compact 100-watt Crestatrons employing permanent magnet focusing. Initially the tubes will be tested in a solenoid until they meet electrical specifications. Ultimately the permanent magnet focused tubes employing a de pressed potential collector will be ruggedized so as to meet environmental specifications. Theoretical as well as experimental studies on high perveance hollow-beam electron guns, in addition to electrostatic focusing systems were continued. The P Mu 20 hollow gun was programmed for solution on a digital computer. The electron trajectory plots obtained are described. The necessary steps to be taken in order to improve the gun performance are listed. A number of 100 watt Crestatrons were tested. Even though the saturation power output is still somewhat low, it is shown that the bandwidth as well as the conversion efficiency are satisfactory. The results of tapering the phase velocity of the slow-wave structure are described. A suggestion is made on how to take advantage of phase focusing near the tube output more fully.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1963
- Accession Number
- AD0414495
Entities
People
- G.t. Konrad
Organizations
- University of Michigan