Gridded Sheet Beam Electron Gun for High Power Radio
Frequency Applications--Calabazas Creek Research, 20937 Comer Drive, Saratoga, CA
95070-3753; 408-741-8680
Mr. George Miram, Principal Investigator, miram@calcreek.com
Dr. Lawrence Ives, Business Official, rlives@calcreek.com
DOE Grant No. DE-FG03-01ER83209
Amount: $100,000
The current generation of high power radio frequency (RF) sources used in high energy physics research employ cylindrical electron beams. Sheet beam devices could potentially provide equivalent or higher levels for RF power with reduced space charge, and, hence, they could operate at lower voltages. Also, a gridded gun could eliminate the requirement for pulse compression to drive the next generation of high power accelerators. This project will develop and test a gridded, sheet beam electron gun for high power RF applications. Phase I will model the optical performance of the emitted electron beam and develop a design that meets the requirements for an 250 kV, 80 MW sheet beam klystron. The mechanical design will include the gridded emitter, grid support, heat shields, heater package, and mounting structure. Thermal analysis will be performed to insure the electron gun performs as required at operating temperature.
Commercial
Applications and Other Benefits as described by awardee: The technology developed
should be applicable to sheet beam klystrons, backward wave oscillators,
traveling-wave accelerators, grating traveling wave tubes, and planar free
electron lasers. The reduction in
beam voltage should greatly reduce the cost and complexity of power supply
systems.