CERN Accelerating science

Article
Title	Recent Results from the X-Band Pulsed Magnicon Amplifier
Author(s)	Nezhevenko, Oleg A ; Fliflet, Arnold ; Gold, Steven H ; Hirshfield, Jay L ; Kinkead, Allen ; La Pointe, Michael A ; Yakovlev, Vyacheslav P
Affiliation	(LET) ; (NRL, Washington, DC) ; (Omega-P, Inc., New Haven, Connecticut) ; (Omega-P, Inc., New Haven, Connecticut; Yale University, New Haven, CT) ; (Yale University, New Haven, CT)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1979
Subject category	Accelerators and Storage Rings
Abstract	A frequency-doubling magnicon amplifier at 11.4 GHz has been designed and built as the prototype of an alternative microwave source for the Next Linear Collider project, and to test high power RF components and accelerating structures. The tube is designed to produce  60 MW,  1.2 microsecond pulses at 58% efficiency and 59 dB gain, using a 470 kV, 220 A, 2 mm-diameter beam. In the first tests the output power was limited to a level of 26 MW in a 200 nsec pulse. This limitation was caused by the oscillations in the tube collector. Experimental results of the magnicon tests with the new collector are presented in this paper