DocumentCode :
2879032
Title :
350 MHZ, 200 KW CW multiple beam inductive output tube
Author :
Ives, R.L. ; Read, M. ; Marsden, D. ; Collins, G. ; Jackson, R.H. ; Bui, T. ; Kimura, T. ; Eisen, E.
Author_Institution :
Calabazas Creek Res., Inc., San Mateo, CA, USA
fYear :
2011
fDate :
26-30 June 2011
Firstpage :
1
Lastpage :
1
Abstract :
Summary form only given.Calabazas Creek Research, Inc. (CCR) and Communications & Power Industries, LLC (CPI) are assembling a 350 MHz, 200 kW CW, multiple beam inductive output tube (MBIOT)1. The MBIOT will be a new, high power, RF source for accelerators and colliders. This device will be a candidate RF source for the Advanced Photon Source at Argonne National Laboratory. The target efficiency is 70% with a predicted gain exceeding 22 dB. The MBIOT uses seven standard IOT electron guns arrayed in a circular pattern about the device axis. These seven electron guns all drive the same fundamental mode output cavity. The RF power is extracted through a single coaxial waveguide on the axis of the device. A solenoidal magnetic field confines the electron beam in the output cavity. CCR Designers use a number of codes for IOT design, including Beam Optics Analyzer, MAGIC 2D/3D, TRAK, HFSS, and TESLA. Design of IOT guns is particularly challenging due to the temporal nature of the electron pulses extracted from the cathode. A resonant cavity drives a control grid to extract pulses of electrons from the cathode at the design frequency. The electrons experience a different accelerating voltage depending on the phase of the RF signal. This causes both pulse bunching and debunching in the acceleration region. This must be considered to accurately predict the device performance. It is anticipated that the assembly will be completed by May 2011. The tube will be transferred to Argonne National Laboratory for high power testing. This presentation will describe the electrical and mechanical design as well as issues arising from the assembly. Any test results will also be presented.
Keywords :
UHF tubes; cathodes; cavity resonators; coaxial waveguides; electron beams; electron guns; electron tube testing; magnetic fields; particle accelerators; solenoids; Argonne National Laboratory; CCR designer; CW multiple beam inductive output tube; HFSS; IOT electron gun; MAGIC 2D-3D; MBIOT; RF power extraction; RF source; TESLA; TRAK; accelerating voltage; advanced photon source; beam optics analyzer; device performance; electron pulse; frequency 350 MHz; mechanical design; power 200 kW; power testing; pulse bunching; resonant cavity drive; single coaxial waveguide; solenoidal magnetic field; Acceleration; Electron tubes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Plasma Science (ICOPS), 2011 Abstracts IEEE International Conference on
Conference_Location :
Chicago, IL
ISSN :
0730-9244
Print_ISBN :
978-1-61284-330-8
Electronic_ISBN :
0730-9244
Type :
conf
DOI :
10.1109/PLASMA.2011.5992911
Filename :
5992911
Link To Document :
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