Theoretical and Experimental Investigation of Electron Beam Acceleration and Submillimeter Wave Generation in Cyclotron Resonant Cavities
Abstract
Many millimeter wave generation interactions have been under development. A prebunched high harmonic gyrotron has extended the power level of our previous high harmonic gyrotrons. Also, the instabilities in gyro-TWT amplifiers are now understood and methods have been formulated to stabilize them (multi severs). This work has led to the design of a very high power (500 kW) harmonic gyro-TWT using a conventional MIG, which we plan to build in the next few years. We have also been active in the development of an extremely high power millimeter wave source, the CARM: (1) we have designed and simulated a 300 MW, 17 GHz device for the next generation high gradient rf linac; (2) we actively participated in LLNL's 250 GHz CARM project; and (3) we are continuing to fabricate at UCLA a 400 kV, 10 MW proof of principle CARM, which will use Bragg reflectors for its requisite frequency selective cavity. We have advanced the state-of-the-art of Bragg reflectors by testing high mode purity Bragg reflectors. In addition, we have designed and are well into the construction of a very high power, wideband continuous tunability gyro-BWO and a very efficient gyro-klystron amplifier.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 20, 1991
- Accession Number
- ADA244389
Entities
People
- D. B. Mcdermott
- N. C. Luhmann Jr.
Organizations
- University of California, Los Angeles