Final Report 200 MW L-Band Annular Beam Klystron for Accelerators

Technical Report · Wed Feb 11 04:00:00 EST 2009

DOI:https://doi.org/10.2172/1011380· OSTI ID:1011380

Read, Michael ^[1]; Ferguson, Patrick; Ives, Lawrence; Song, Liqun; Carlsten, Bruce; Fazio, Michael

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1. Calabazas Creek Research, Inc.

This program developed a 200 MW, 1.3 GHz, Annular Beam Klystron (ABK) for accelerator systems. An ABK provides lower impedance than a conventional klystron, making it possible to produce higher RF powers with lower voltages. With a higher power per unit, fewer klystrons would be required for a large accelerator. Lower voltage also simplifies and reduces the cost of the power supply system. Both features will significantly lower the cost of an RF system. This device operates at 475 kV. The klystron uses a magnetron injection gun producing 1100 A in one microsecond pulses. Power is extracted into fundamental rectangular waveguide through two output windows. The predicted gain is approximately 45 dB with estimated efficiency of 45%. The klystron was assembled, but no facility was available for testing. Consequently, no high power performance measurements are available. Because the assembled klystron is approximately 15 feet long, it was disassembled for storage. It can be reassembled should a use materialize.

• Research Organization: Calabazas Creek Research, Inc.
• Sponsoring Organization: USDOE Office of Science and Technology (EM-50)
• DOE Contract Number: FG02-05ER84350
• OSTI ID: 1011380
• Report Number(s): DOE/ER84350-02
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
klystron
annular beam
RF source
accelerators
annular beam klystron