Adjustment of a double drift harmonic buncher and bunch shape measurements

The longitudinal beam matching of the new 50 MeV linac is achieved with a double drift harmonic buncher. For optimum bunching efficiency the RF phase difference between the two cavities should be known and controlled to about 1 degrees (at 202.56 MHz). The adjustment of the RF levels and phases is b...

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Detalles Bibliográficos
Autores principales: Knott, J, Warner, D, Weiss, M
Lenguaje:eng
Publicado: 1976
Materias:
Nuclear Physics
Acceso en línea:http://cds.cern.ch/record/873817
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author Knott, J
Warner, D
Weiss, M
author_facet Knott, J
Warner, D
Weiss, M
author_sort Knott, J
collection CERN
description The longitudinal beam matching of the new 50 MeV linac is achieved with a double drift harmonic buncher. For optimum bunching efficiency the RF phase difference between the two cavities should be known and controlled to about 1 degrees (at 202.56 MHz). The adjustment of the RF levels and phases is based on observations of the bunch form via a broad-band probe connected to a travelling wave oscilloscope. The time base is tightly locked to the RF by a specially developed circuit allowing a systematic study of different bunching conditions. A comparison is made between some preliminary measurements and the waveforms predicted by a simplified theory. (3 refs).
id cern-873817
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1976
record_format invenio
spelling cern-8738172019-09-30T06:29:59Zhttp://cds.cern.ch/record/873817engKnott, JWarner, DWeiss, MAdjustment of a double drift harmonic buncher and bunch shape measurementsNuclear PhysicsThe longitudinal beam matching of the new 50 MeV linac is achieved with a double drift harmonic buncher. For optimum bunching efficiency the RF phase difference between the two cavities should be known and controlled to about 1 degrees (at 202.56 MHz). The adjustment of the RF levels and phases is based on observations of the bunch form via a broad-band probe connected to a travelling wave oscilloscope. The time base is tightly locked to the RF by a specially developed circuit allowing a systematic study of different bunching conditions. A comparison is made between some preliminary measurements and the waveforms predicted by a simplified theory. (3 refs).oai:cds.cern.ch:8738171976
spellingShingle Nuclear Physics
Knott, J
Warner, D
Weiss, M
Adjustment of a double drift harmonic buncher and bunch shape measurements
title Adjustment of a double drift harmonic buncher and bunch shape measurements
title_full Adjustment of a double drift harmonic buncher and bunch shape measurements
title_fullStr Adjustment of a double drift harmonic buncher and bunch shape measurements
title_full_unstemmed Adjustment of a double drift harmonic buncher and bunch shape measurements
title_short Adjustment of a double drift harmonic buncher and bunch shape measurements
title_sort adjustment of a double drift harmonic buncher and bunch shape measurements
topic Nuclear Physics
url http://cds.cern.ch/record/873817
work_keys_str_mv AT knottj adjustmentofadoubledriftharmonicbuncherandbunchshapemeasurements
AT warnerd adjustmentofadoubledriftharmonicbuncherandbunchshapemeasurements
AT weissm adjustmentofadoubledriftharmonicbuncherandbunchshapemeasurements

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