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A 100 Megavolt per Meter Electron Linear Accelerator System--Haimson Research Corporation, 3350 Scott Boulevard, Building 60, Santa Clara, CA 95054-3104; 408-988-6007
Dr. Jacob Haimson, Principal Investigator
Ms. Beverly Mecklenburg, Business Official
DOE Grant No. DE-FG03-98ER82589
Amount: $740,000
Research on high gradient accelerator structures and coupling cavities to elevate existing RF breakdown thresholds (60 to 80 MV/m) has been curtailed due to the cost and complexity of developing suitable test facilities that provide flat-top RF pulses at very high peak power levels. This project will design and construct a compact 17 gigahertz high gradient test accelerator and a dual paralleled microwave bridge configuration that interfaces with an existing radio frequency source to produce a large amplification of the source peak power for recirculation through the test accelerator structure so that the limiting thresholds of high gradient operation can be evaluated. During Phase I, mechanical and microwave design parameters were established for a 100 MV/m accelerating structure and a four-fold power amplification system comprising compact dual hybrid junctions energized from an existing 17.1 gigahertz high peak power source. In Phase II, the linear accelerator power amplification system will be fabricated and interfaced with an existing RF source, and the high gradient performance of the system shall be evaluated. This test facility will interface with an existing electron injection system and a 25 MeV beam spectrometer, and be physically arranged to enable convenient installation and removal of experimental accelerating structures.
Commercial Applications and other Benefits as described by the awardee: This research effort should result in a compact accelerator system suitable for high gradient research and advanced accelerator applications and for evaluating 17 gigahertz linear collider technology.