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High spatial coherence and short pulse duration revealed by the Hanbury Brown and Twiss interferometry at the European XFEL

Khubbutdinov, Ruslan (author)
DESY, Notkestr 85, D-22607 Hamburg, Germany.;Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Kashirskoe Shosse 31, Moscow 115409, Russia.
Gerasimova, Natalia (author)
European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany.
Mercurio, Giuseppe (author)
European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany.
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Assalauova, Dameli (author)
DESY, Notkestr 85, D-22607 Hamburg, Germany.
Carnis, Jerome (author)
DESY, Notkestr 85, D-22607 Hamburg, Germany.
Gelisio, Luca (author)
DESY, Ctr Free Electron Laser Sci, Luruper Chaussee 149, D-22761 Hamburg, Germany.
Le Guyader, Loic (author)
European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany.
Ignatenko, Alexandr (author)
DESY, Notkestr 85, D-22607 Hamburg, Germany.
Kim, Young Yong (author)
DESY, Notkestr 85, D-22607 Hamburg, Germany.
Van Kuiken, Benjamin E. (author)
European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany.
Kurta, Ruslan P. (author)
European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany.
Lapkin, Dmitry (author)
DESY, Notkestr 85, D-22607 Hamburg, Germany.
Teichmann, Martin (author)
European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany.
Yaroslavtsev, Alexander (author)
Uppsala universitet,FREIA,European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany.
Gorobtsov, Oleg (author)
Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14850 USA.
Menushenkov, Alexey P. (author)
Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Kashirskoe Shosse 31, Moscow 115409, Russia.
Scholz, Matthias (author)
DESY, Notkestr 85, D-22607 Hamburg, Germany.
Scherz, Andreas (author)
European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany.
Vartanyants, Ivan A. (author)
DESY, Notkestr 85, D-22607 Hamburg, Germany.;Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Kashirskoe Shosse 31, Moscow 115409, Russia.
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DESY, Notkestr 85, D-22607 Hamburg, Germany;Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Kashirskoe Shosse 31, Moscow 115409, Russia. European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany. (creator_code:org_t)
American Institute of Physics (AIP), 2021
2021
English.
In: Structural Dynamics. - : American Institute of Physics (AIP). - 2329-7778. ; 8:4
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Second-order intensity interferometry was employed to study the spatial and temporal properties of the European X-ray Free-Electron Laser (EuXFEL). Measurements were performed at the soft x-ray Self-Amplified Spontaneous Emission (SASE3) undulator beamline at a photon energy of 1.2 keV in the Self-Amplified Spontaneous Emission (SASE) mode. Two high-power regimes of the SASE3 undulator settings, i.e., linear and quadratic undulator tapering at saturation, were studied in detail and compared with the linear gain regime. The statistical analysis showed an exceptionally high degree of spatial coherence up to 90% for the linear undulator tapering. Analysis of the measured data in spectral and spatial domains provided an average pulse duration of about 10 fs in our measurements. The obtained results will be valuable for the experiments requiring and exploiting short pulse duration and utilizing high coherence properties of the EuXFEL.

Subject headings

NATURVETENSKAP  -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)

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