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dc.contributor.author
Prat, Eduard
dc.contributor.author
Aiba, Masamitsu
dc.date.accessioned
2020-02-04T08:27:21Z
dc.date.available
2017-06-11T06:16:29Z
dc.date.available
2019-12-10T18:24:02Z
dc.date.available
2020-02-04T08:27:21Z
dc.date.issued
2014-03
dc.identifier.issn
1098-4402
dc.identifier.other
10.1103/PhysRevSTAB.17.032801
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/81803
dc.identifier.doi
10.3929/ethz-b-000081803
dc.description.abstract
In free-electron lasers, it is essential to characterize the beam parameters as a function of the longitudinal position along the bunch, i.e., to determine the so-called slice parameters. Conventional measurements utilize transverse deflector structures to deflect the beam transversely as a function of time. Such structures are expensive and only allow the measurement of slice parameters in one transverse plane. Alternatively, the correlation between time and transverse position can be generated by introducing transverse dispersion to an energy-chirped beam. Dedicated dispersive sections can be used to measure the slice beam parameters in one transverse plane at one location. To extend the applicability of such measurements, we propose to actively generate the dispersion in the two transverse directions wherever required, thus enabling the measurement of beam slice parameters in both transverse planes at potentially any location of the accelerator. Our strategy does not incur any additional cost since it utilizes components already built into the accelerator for other purposes. The application of the method is illustrated with the SwissFEL injector test facility: we show simulations and measurements and we experimentally verify our proposal with the well-established transverse deflector approach.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
American Physical Society
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
General and efficient dispersion-based measurement of beam slice parameters
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2014-03-13
ethz.journal.title
Physical Review. Special Topics. Accelerators and Beams
ethz.journal.volume
17
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
Phys. rev. spec. top., Accel. beams
ethz.pages.start
032801
en_US
ethz.size
8p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
College Park, MD
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2017-06-11T06:20:30Z
ethz.source
ECIT
ethz.identifier.importid
imp593651baf0af939317
ethz.ecitpid
pub:129007
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-15T05:21:08Z
ethz.rosetta.lastUpdated
2020-02-04T08:27:33Z
ethz.rosetta.versionExported
true
ethz.COinS
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