Modified Magnicon for High-Gradient Accelerator \&

Conference · Tue May 01 04:00:00 EDT 2012 · Conf.Proc.

OSTI ID:1406551

Yakovlev, V. P. ^[1]; Hirshfield, J. L. ^[2]; Jiang, Y. ^[3]; LaPointe, M. A. ^[3]; Shchelkunov, S. V. ^[3]

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1. Fermilab
2. Omega-P, New Haven
3. Yale U.

A self-consistent design is described of a modified 34.3 GHz magnicon amplifier with a TE311-mode output cavity, to replace the existing magnicon at Yale Beam Physics Lab Test Facility whose output cavity operates in the TM310 mode. The main g oal for the new design is to achieve robust reliable operation. This is expected since tube performance according to simulations is largely insensitive to the magnitude of external dc magnetic fields, including imperfections in magnetic field profile; small changes in gun voltage and current; changes in electron beam radial size; and even poorly matched external circuitry. The new tube, as with its predecessor, is a third harmonic amplifier, with drive and deflection gain cavities near 11.424 GHz and output cavity at 34.272 GHz. The design calculations predict stable output of power of 20-27 MW at a 10 Hz repetition rate in pulses up to 1.3 microsec long, with a low probability of breakdown in the output cavity because of low electric fields (less tha n 650 kV/cm).

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1406551
• Report Number(s): FERMILAB-CONF-12-628-TD; IPAC-2012-THPPC042; 1126762
• Conference Information: Journal Name: Conf.Proc. Journal Volume: C1205201
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS