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Q measurement with swept RC filter for automatic data acquisition and display

Describes an automatic Q measurement system (Q=f/sub betatron//f/sub revolution/) which was developed and installed at the 28 GeV Proton Synchrotron of CERN. At the desired moment the beam is excited to 1 mm betatron oscillations by means of a programmed full aperture air kicker. The frequency spect...

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Detalles Bibliográficos
Autores principales: Potier, J P, Schneider, G C, Schulte, E
Lenguaje:eng
Publicado: 1973
Materias:
Acceso en línea:https://dx.doi.org/10.1109/TNS.1973.4327178
http://cds.cern.ch/record/880666
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author Potier, J P
Schneider, G C
Schulte, E
author_facet Potier, J P
Schneider, G C
Schulte, E
author_sort Potier, J P
collection CERN
description Describes an automatic Q measurement system (Q=f/sub betatron//f/sub revolution/) which was developed and installed at the 28 GeV Proton Synchrotron of CERN. At the desired moment the beam is excited to 1 mm betatron oscillations by means of a programmed full aperture air kicker. The frequency spectrum which appears at a beam position pick- up station contains the non integer part of the Q value as the lowest frequency. A voltage controlled RC filter scans the pick-up signal spectrum. When the lowest frequency of the spectrum is attained, a feedback loop switches the filter to a constant frequency. The ratio measurement (normalization to the revolution frequency) is performed by counting the doubled acceleration frequency during 10 periods of the filter output frequency. The counter output is fed to a computer which displays after data handling the Q value on an alphanumeric cathode ray tube. (6 refs).
id cern-880666
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1973
record_format invenio
spelling cern-8806662019-09-30T06:29:59Zdoi:10.1109/TNS.1973.4327178http://cds.cern.ch/record/880666engPotier, J PSchneider, G CSchulte, EQ measurement with swept RC filter for automatic data acquisition and displayDetectors and Experimental TechniquesDescribes an automatic Q measurement system (Q=f/sub betatron//f/sub revolution/) which was developed and installed at the 28 GeV Proton Synchrotron of CERN. At the desired moment the beam is excited to 1 mm betatron oscillations by means of a programmed full aperture air kicker. The frequency spectrum which appears at a beam position pick- up station contains the non integer part of the Q value as the lowest frequency. A voltage controlled RC filter scans the pick-up signal spectrum. When the lowest frequency of the spectrum is attained, a feedback loop switches the filter to a constant frequency. The ratio measurement (normalization to the revolution frequency) is performed by counting the doubled acceleration frequency during 10 periods of the filter output frequency. The counter output is fed to a computer which displays after data handling the Q value on an alphanumeric cathode ray tube. (6 refs).oai:cds.cern.ch:8806661973
spellingShingle Detectors and Experimental Techniques
Potier, J P
Schneider, G C
Schulte, E
Q measurement with swept RC filter for automatic data acquisition and display
title Q measurement with swept RC filter for automatic data acquisition and display
title_full Q measurement with swept RC filter for automatic data acquisition and display
title_fullStr Q measurement with swept RC filter for automatic data acquisition and display
title_full_unstemmed Q measurement with swept RC filter for automatic data acquisition and display
title_short Q measurement with swept RC filter for automatic data acquisition and display
title_sort q measurement with swept rc filter for automatic data acquisition and display
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1109/TNS.1973.4327178
http://cds.cern.ch/record/880666
work_keys_str_mv AT potierjp qmeasurementwithsweptrcfilterforautomaticdataacquisitionanddisplay
AT schneidergc qmeasurementwithsweptrcfilterforautomaticdataacquisitionanddisplay
AT schultee qmeasurementwithsweptrcfilterforautomaticdataacquisitionanddisplay