A 4.2 GS/s Synchronized Vertical Excitation System for SPS Studies - Steps Toward Wideband Feedback

A 4.2 GS/sec. beam excitation system with accelerator synchronization and power stages is described. The system is capable of playing unique samples (32 samples/bunch) for 15,000 turns on selected bunch(es) in the SPS in synchronism with the injection and acceleration cycle. The purpose of the syste...

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Detalles Bibliográficos
Autores principales: Fox, JD, Olsen, J, Rivetta, C, Rivetta, I, Turgut, O, Uemura, S, Hofle, W, Wehrle, U.
Lenguaje:eng
Publicado: 2012
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1558402
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author Fox, JD
Olsen, J
Rivetta, C
Rivetta, I
Turgut, O
Uemura, S
Hofle, W
Wehrle, U.
author_facet Fox, JD
Olsen, J
Rivetta, C
Rivetta, I
Turgut, O
Uemura, S
Hofle, W
Wehrle, U.
author_sort Fox, JD
collection CERN
description A 4.2 GS/sec. beam excitation system with accelerator synchronization and power stages is described. The system is capable of playing unique samples (32 samples/bunch) for 15,000 turns on selected bunch(es) in the SPS in synchronism with the injection and acceleration cycle. The purpose of the system is to excite internal modes of singlebunch vertical motion, and study the bunch dynamics in the presence of developing Electron cloud or TMCI effects. The system includes a synchronized master oscillator, SPS timing functions, an FPGA based arbitrary waveform generator, 4.2 GS/sec. D/A system and four 80W 20 -1000 MHz amplifiers driving a tapered stripline pickup/kicker. A software GUI allows specification of various modulation signals, selection of bunches and turns to excite, while a remote control interface allows simple control/monitoring of the RF power stages located in the tunnel. The successful use of this system for SPS MD measurements in 2011 is a vital proof-of-principle for wideband feedback using similar functions to correct the beam motion.
id cern-1558402
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-15584022019-09-30T06:29:59Zhttp://cds.cern.ch/record/1558402engFox, JDOlsen, JRivetta, CRivetta, ITurgut, OUemura, SHofle, WWehrle, U.A 4.2 GS/s Synchronized Vertical Excitation System for SPS Studies - Steps Toward Wideband FeedbackAccelerators and Storage RingsA 4.2 GS/sec. beam excitation system with accelerator synchronization and power stages is described. The system is capable of playing unique samples (32 samples/bunch) for 15,000 turns on selected bunch(es) in the SPS in synchronism with the injection and acceleration cycle. The purpose of the system is to excite internal modes of singlebunch vertical motion, and study the bunch dynamics in the presence of developing Electron cloud or TMCI effects. The system includes a synchronized master oscillator, SPS timing functions, an FPGA based arbitrary waveform generator, 4.2 GS/sec. D/A system and four 80W 20 -1000 MHz amplifiers driving a tapered stripline pickup/kicker. A software GUI allows specification of various modulation signals, selection of bunches and turns to excite, while a remote control interface allows simple control/monitoring of the RF power stages located in the tunnel. The successful use of this system for SPS MD measurements in 2011 is a vital proof-of-principle for wideband feedback using similar functions to correct the beam motion.oai:cds.cern.ch:15584022012
spellingShingle Accelerators and Storage Rings
Fox, JD
Olsen, J
Rivetta, C
Rivetta, I
Turgut, O
Uemura, S
Hofle, W
Wehrle, U.
A 4.2 GS/s Synchronized Vertical Excitation System for SPS Studies - Steps Toward Wideband Feedback
title A 4.2 GS/s Synchronized Vertical Excitation System for SPS Studies - Steps Toward Wideband Feedback
title_full A 4.2 GS/s Synchronized Vertical Excitation System for SPS Studies - Steps Toward Wideband Feedback
title_fullStr A 4.2 GS/s Synchronized Vertical Excitation System for SPS Studies - Steps Toward Wideband Feedback
title_full_unstemmed A 4.2 GS/s Synchronized Vertical Excitation System for SPS Studies - Steps Toward Wideband Feedback
title_short A 4.2 GS/s Synchronized Vertical Excitation System for SPS Studies - Steps Toward Wideband Feedback
title_sort 4.2 gs/s synchronized vertical excitation system for sps studies - steps toward wideband feedback
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1558402
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