Title :
A chopper driven 11.4-GHz traveling-wave RF generator
Author :
Westenskow, G. ; Boyd, J. ; Houck, T. ; Rogers, D. ; Ryne, R. ; Haimson, J. ; Mecklenburg, B.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
Abstract :
A high-power 11.4-GHz RF generator which consists of a 5.7-GHz chopping system and two 11.4-GHz traveling-wave output structures has been tested. The device was designed to generate about 500 MW of pulsed RF power at 11.4 GHz when driven by a 1-kA, 3-MeV induction beam. Problems with beam breakup in the output structures have limited the width of the RF output pulse for currents above 600 A. Short RF pulses up to 420 MW have been produced. Modifications are being made to decrease the growth of the beam-breakup fields in the output structures, and the chopping section will be used to study various extraction structures and the reacceleration of a bunched beam by induction cells.<>
Keywords :
beam handling equipment; choppers (circuits); power supplies to apparatus; pulse generators; pulsed power technology; 1 kA; 11.4 GHz; 3 MeV; 420 MW; 5.7 GHz; 500 MW; beam breakup; bunched beam; chopping system; extraction structures; induction beam; induction cells; pulsed RF power; reacceleration; traveling-wave RF generator; traveling-wave output structures; Choppers; Collimators; Induction generators; Laboratories; Power generation; Pulse generation; Radio frequency; Structural beams; System testing; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164391
