A 200 MHz High Power RF Amplifier

79197S When muon beams are produced for high energy physics research, they initially have transverse and longitudinal emittances that are too large. Low frequency amplifiers (200 MHz is desired) at high power and a power gradient of 5 MW/m are required to ameliorate this problem This program will develop a low frequency high power amplifier that operates at at least 30 MW, with 200 MHz amplifiers capable of 100 microseconds pulses at a repetition rate of 15 Hz. By modulating the current of an electron gun, the extracted RF power from the system will be capable of producing a large range of output frequencies suitable for muon accelerator applications. In Phase I, a theoretical study and experiments will be conducted to develop the prototype design of the low frequency high power amplifier for 200MHz muon accelerator applications. Commercial Applications and Other Benefits as described by the awardee: A radio frequency (RF) amplifier in the 20-1000 MHz range should be applicable to high-energy physics and to RF microwave applications. Applications include muon accelerators; UHF and television broadcasting; low resolution, long-range radar; ground penetrating radar; and particle accelerators. Compact packaging of high RF power would alllow for the insertion of these amplifiers into portable systems, both ground based, shipboard, and airborne.