Coupling impedance of an in-vacuum undulator: Measurement, simulation, and analytical estimation

Coupling impedance of an in-vacuum undulator: Measurement, simulation, and analytical estimation

One of the important issues of the in-vacuum undulator design is the coupling impedance of the vacuum chamber, which includes tapered transitions with variable gap size. To get complete and reliable information on the impedance, analytical estimate, numerical simulations and beam-based measurements...

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Main Authors: Victor Smaluk, Richard Fielder, Alexei Blednykh, Guenther Rehm, Riccardo Bartolini
Format: Article
Language:English
Published: American Physical Society 2014-07-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.17.074402
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spelling doaj-550a023d524f45469e9aa4256c432ce02020-11-25T00:15:26ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022014-07-0117707440210.1103/PhysRevSTAB.17.074402Coupling impedance of an in-vacuum undulator: Measurement, simulation, and analytical estimationVictor SmalukRichard FielderAlexei BlednykhGuenther RehmRiccardo BartoliniOne of the important issues of the in-vacuum undulator design is the coupling impedance of the vacuum chamber, which includes tapered transitions with variable gap size. To get complete and reliable information on the impedance, analytical estimate, numerical simulations and beam-based measurements have been performed at Diamond Light Source, a forthcoming upgrade of which includes introducing additional insertion device (ID) straights. The impedance of an already existing ID vessel geometrically similar to the new one has been measured using the orbit bump method. The measurement results in comparison with analytical estimations and numerical simulations are discussed in this paper.http://doi.org/10.1103/PhysRevSTAB.17.074402
collection DOAJ
language English
format Article
sources DOAJ
author Victor Smaluk
Richard Fielder
Alexei Blednykh
Guenther Rehm
Riccardo Bartolini
spellingShingle Victor Smaluk
Richard Fielder
Alexei Blednykh
Guenther Rehm
Riccardo Bartolini
Coupling impedance of an in-vacuum undulator: Measurement, simulation, and analytical estimation
Physical Review Special Topics. Accelerators and Beams
author_facet Victor Smaluk
Richard Fielder
Alexei Blednykh
Guenther Rehm
Riccardo Bartolini
author_sort Victor Smaluk
title Coupling impedance of an in-vacuum undulator: Measurement, simulation, and analytical estimation
title_short Coupling impedance of an in-vacuum undulator: Measurement, simulation, and analytical estimation
title_full Coupling impedance of an in-vacuum undulator: Measurement, simulation, and analytical estimation
title_fullStr Coupling impedance of an in-vacuum undulator: Measurement, simulation, and analytical estimation
title_full_unstemmed Coupling impedance of an in-vacuum undulator: Measurement, simulation, and analytical estimation
title_sort coupling impedance of an in-vacuum undulator: measurement, simulation, and analytical estimation
publisher American Physical Society
series Physical Review Special Topics. Accelerators and Beams
issn 1098-4402
publishDate 2014-07-01
description One of the important issues of the in-vacuum undulator design is the coupling impedance of the vacuum chamber, which includes tapered transitions with variable gap size. To get complete and reliable information on the impedance, analytical estimate, numerical simulations and beam-based measurements have been performed at Diamond Light Source, a forthcoming upgrade of which includes introducing additional insertion device (ID) straights. The impedance of an already existing ID vessel geometrically similar to the new one has been measured using the orbit bump method. The measurement results in comparison with analytical estimations and numerical simulations are discussed in this paper.
url http://doi.org/10.1103/PhysRevSTAB.17.074402
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