Author :
Houck, T.L. ; Westenskow, G.A. ; Haimson, J. ; Mecklenburg, B.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
Abstract :
We present experimental results of a version of the Choppertron microwave generator designed to work with the high emittance beam of the Advanced Test Accelerator (ATA). Simulations showed that a 800-A, 120 π cm-mrad beam (typical of ATA), could produce 800 MW of RF (11.4 GHz) power using two 12-cell, traveling-wave output structures. Funding contraints prevented final tuning of the modulator system and limited the experiment to 530 MW in narrow pulses. Over 400 MW were extracted from a single output structure through fundamental waveguide. Beam breakup was successfully suppressed with >800 amperes of current transported through the extraction section
Keywords :
accelerator RF systems; electron accelerators; linear accelerators; microwave generation; 11.4 GHz; 400 MW; 530 MW; 800 MW; ATA; Advanced Test Accelerator; Chopperton II; beam breakup; microwave generator; traveling-wave output structures; Amplitude modulation; Apertures; Colliding beam accelerators; Collimators; Optical modulation; Particle beams; Phase modulation; Power generation; Power measurement; Pulse measurements;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505273
