论文信息 - Multi-Nanosecond High Power Pulse Generation at 7.8 GHz With a Dielectric-Loaded Power Extractor

Multi-Nanosecond High Power Pulse Generation at 7.8 GHz With a Dielectric-Loaded Power Extractor

Power extraction from charged particle beams is a prospective way to develop future high power radio frequency (RF) sources. We have designed and tested a 7.8 GHz power extractor based on a dielectric-loaded waveguide. Building upon earlier work on single electron bunch tests, 10 ns and 22 ns megawatt-level RF pulses have been generated with trains consisting of 16 electron bunches each, by using a laser splitting-recombination scheme. In addition, 44 MW of peak power has been generated with a train consisting 4 electron bunches. Behaviors of higher-order-modes are also explored.

[1] Steven H. Gold,et al. Development of a Dielectric‐Loaded Accelerator Test Facility Based on an X‐Band Magnicon Amplifier , 2006 .

[2] Thomas P. Wangler,et al. Principles RF Linear Accelerators: Wangler/Principles , 2008 .

[3] W. Lawson,et al. Performance characteristics of a high-power X-band two-cavity gyroklystron , 1992 .

[4] W. Gai,et al. Construction and testing of an 11.4 GHz dielectric structure based traveling wave accelerator , 2000 .

[5] Wei Gai,et al. Numerical simulations of intense charged-particle beam propagation in a dielectric wake-field accelerator , 1997 .

[6] M. Rosing,et al. Measurement of deflection‐mode damping in an accelerating structure , 1991 .

[7] W. Gai,et al. Design and testing of a 7.8 GHz power extractor using a cylindrical dielectric-loaded waveguide , 2008 .

[8] P. Wilson. ADVANCED RF POWER SOURCES FOR LINACS , 1996 .

[9] Thomas P. Wangler,et al. RF linear accelerators , 2008 .