RESEARCH AND DEVELOPMENT ON HIGH-POWER CRESTATRONS FOR THE 100-300 MC FREQUENCY RANGE.
Quarterly progress rept. no. 14, 1 Oct 63,-1 Jan 64,
MICHIGAN UNIV ANN ARBOR ELECTRON PHYSICS LAB
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A series of trajectory plots is shown which led to a reasonably good electrial design for the P mu 20 gun. The work done on the electrostatically focused tube using a P mu4.46 gun indicates that much better focusing can be obtained with the improved gun. At reduced voltages the beam transmission is only fair but it is shown that the percentage of transmission is improving as the design voltage is approached. In order to center the operating band of the 100-watt Crestatrons more nearly within the desired frequency range and in order to overcome the r-f losses observed in the couplers, a revision is made in the tube design. The new dimensions and electrical parameters are shown. Author