250-MW X-band TE{sub 01} ubitron using a coaxial PPM wiggler

Journal Article · Sat Jun 01 00:00:00 EDT 1996 · IEEE Transactions on Plasma Science

DOI:https://doi.org/10.1109/27.533082· OSTI ID:377839

Balkcum, A J; McDermott, D B; Luhmann, Jr, N C ^[1]; Phillips, R M ^[2]; Lin, A T ^[3]

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1. Univ. of California, Davis, CA (United States). Dept. of Applied Science
2. Stanford Univ., CA (United States). Stanford Linear Accelerator Center
3. Univ. of California, Los Angeles, CA (United States). Dept. of Physics

A highly efficient 250-MW X-band ubitron amplifier to drive high-gradient linear accelerators is described. The ubitron utilizes periodic permanent magnets with zero guide field and a coaxial circuit operating in the breakdown resistant TE{sub 01} mode. Periodic wiggler focusing in a coaxial transmission line allows for stable transport of high-current annular electron beams while producing a strong quiver velocity to drive the ubitron. A large-signal self-consistent simulation code predicts that an efficiency of 37% and a gain of 53 dB can be achieved in a length of 100 cm with a 500-kV 1-kA electron beam, while a tapered wiggler will yield an efficiency as high as 56%.

• OSTI ID: 377839
• Journal Information: IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 3 Vol. 24; ISSN ITPSBD; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM OPTICS
COMPUTERIZED SIMULATION
DESIGN
LINEAR ACCELERATORS
MICROWAVE AMPLIFIERS
OSCILLATION MODES
PERFORMANCE
RF SYSTEMS
WIGGLER MAGNETS