Development of a high-speed digital signal process system for bunch-by-bunch feedback systems
High-speed digital filter systems for bunch-by-bunch feedback systems have been developed at KEK. A two-tap finite impulse response filter with simple hardware realizes the functions of a 90° phase shift, suppression of the static component and digital delay of up to a few hundred turns for the KEKB...
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American Physical Society
2000-01-01
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Series: | Physical Review Special Topics. Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevSTAB.3.012801 |
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doaj-665a390fe8b14d0398898f092ed427822020-11-24T21:26:06ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022000-01-013101280110.1103/PhysRevSTAB.3.012801Development of a high-speed digital signal process system for bunch-by-bunch feedback systemsMakoto TobiyamaEiji KikutaniHigh-speed digital filter systems for bunch-by-bunch feedback systems have been developed at KEK. A two-tap finite impulse response filter with simple hardware realizes the functions of a 90° phase shift, suppression of the static component and digital delay of up to a few hundred turns for the KEKB rings. Difficulties in the circuit board, such as the trimming of the timing skews or the problem of long-term reliability, have been solved using custom GaAs large-scale integrated circuits which demultiplex and multiplex fast parallel-digital data coming from the analog-to-digital converter and going to the digital-to-analog converter. Two major applications of the filter board, the bunch current monitor and the bunch oscillation recorder with 20 MB memories for transient-domain analysis of the instabilities, are also described.http://doi.org/10.1103/PhysRevSTAB.3.012801 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Makoto Tobiyama Eiji Kikutani |
spellingShingle |
Makoto Tobiyama Eiji Kikutani Development of a high-speed digital signal process system for bunch-by-bunch feedback systems Physical Review Special Topics. Accelerators and Beams |
author_facet |
Makoto Tobiyama Eiji Kikutani |
author_sort |
Makoto Tobiyama |
title |
Development of a high-speed digital signal process system for bunch-by-bunch feedback systems |
title_short |
Development of a high-speed digital signal process system for bunch-by-bunch feedback systems |
title_full |
Development of a high-speed digital signal process system for bunch-by-bunch feedback systems |
title_fullStr |
Development of a high-speed digital signal process system for bunch-by-bunch feedback systems |
title_full_unstemmed |
Development of a high-speed digital signal process system for bunch-by-bunch feedback systems |
title_sort |
development of a high-speed digital signal process system for bunch-by-bunch feedback systems |
publisher |
American Physical Society |
series |
Physical Review Special Topics. Accelerators and Beams |
issn |
1098-4402 |
publishDate |
2000-01-01 |
description |
High-speed digital filter systems for bunch-by-bunch feedback systems have been developed at KEK. A two-tap finite impulse response filter with simple hardware realizes the functions of a 90° phase shift, suppression of the static component and digital delay of up to a few hundred turns for the KEKB rings. Difficulties in the circuit board, such as the trimming of the timing skews or the problem of long-term reliability, have been solved using custom GaAs large-scale integrated circuits which demultiplex and multiplex fast parallel-digital data coming from the analog-to-digital converter and going to the digital-to-analog converter. Two major applications of the filter board, the bunch current monitor and the bunch oscillation recorder with 20 MB memories for transient-domain analysis of the instabilities, are also described. |
url |
http://doi.org/10.1103/PhysRevSTAB.3.012801 |
work_keys_str_mv |
AT makototobiyama developmentofahighspeeddigitalsignalprocesssystemforbunchbybunchfeedbacksystems AT eijikikutani developmentofahighspeeddigitalsignalprocesssystemforbunchbybunchfeedbacksystems |
_version_ |
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