C. Whyte, A. Young, D. Rowlands, C. Robertson, A. Phelps, Wenlong He, A. Cross, K. Ronald
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Broadband gyro-TWA with thermionic cusp gun: Simulations and comparison with experiment
The latest results of experimental investigations of an X-band gyro-TWA using a cusp gun and a helically corrugated interaction region are presented. Results will be presented from two experimental investigations, one using a 150 kV, 35 A beam from a cold field emission cusp gun and one with a 150 kV, 70 A beam from a thermionic cusp gun. Designs for a gridded thermionic cusp gun currently under construction will also be presented. Numerical investigations of the gyro-TWA have been completed and used to predict the saturated and small signal gain of several gyro-TWA devices. These predictions are compared with the experimental results obtained.