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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577521001958
|2 doi
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|a pubmed24n1083.xml
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|a (DE-627)NLM325028761
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|a (NLM)33949985
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Trebushinin, Andrei
|e verfasserin
|4 aut
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|a Spatial-frequency features of radiation produced by a step-wise tapered undulator
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 15.06.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a open access.
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|a A scheme to generate wide-bandwidth radiation using a step-wise tapered undulator with a segmented structure is proposed. This magnetic field configuration allows to broaden the undulator harmonic spectrum by two orders of magnitude, providing 1 keV bandwidth with spectral flux density exceeding 1016 photons s-1 mm-2 (0.1% bandwidth)-1 at 5 keV on the sample. Such a magnetic setup is applicable to superconducting devices where magnetic tapering cannot be arranged mechanically. The resulting radiation with broadband spectrum and flat-top shape may be exploited at a multipurpose beamline for scanning over the spectrum at time scales of 10-100 ms. The radiation from a segmented undulator is described analytically and derivations with numerical simulations are verified. In addition, a start-to-end simulation of an optical beamline is performed and issues related to the longitudinally distributed radiation source and its image upon focusing on the sample are addressed
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|a Journal Article
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|a superconducting undulator
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|a tapered undulator
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|a wavefront propagation
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|a Serkez, Svitozar
|e verfasserin
|4 aut
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| 700 |
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|a Veremchuk, Mykola
|e verfasserin
|4 aut
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|a Rakshun, Yakov
|e verfasserin
|4 aut
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|a Geloni, Gianluca
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 28(2021), Pt 3 vom: 01. Mai, Seite 769-777
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
1 |
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|g volume:28
|g year:2021
|g number:Pt 3
|g day:01
|g month:05
|g pages:769-777
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|u http://dx.doi.org/10.1107/S1600577521001958
|3 Volltext
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|d 28
|j 2021
|e Pt 3
|b 01
|c 05
|h 769-777
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