Contribution to a book

PUBDB-2021-00656

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Wavefront and Coherence Characteristics of Extreme UV and Soft X-ray Sources

Schäfer, B. (Corresponding author)Extern* ; Flöter, B.Extern* ; Mey, T.Extern* ; Mann, K.Extern*

2020
Springer International Publishing Cham
ISBN: 978-3-030-34412-2 (print), 978-3-030-34413-9 (electronic)

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Please use a persistent id in citations: doi:10.1007/978-3-030-34413-9_20  doi:10.3204/PUBDB-2021-00656

Abstract: The first part of this chapter comprises setups and results of the determination of wavefront and beam parameters for different EUV sources (free-electron lasers, HHG-sources, synchrotron radiation) by self supporting Hartmann-Sensors. We present here i.a. a sensor applied for alignment of the ellipsodial mirror at FLASH beamline 2, yielding a reduction of the rms-wavefront aberrations by more than a factor of 3. In the second part we report on the characterization of the Free-Electron-Laser FLASH at DESY by a quantitative determination of the Wigner distribution function. The setup, comprising an ellipsodial mirror and a moveable extreme UV sensitive CCD detector, enables the mapping of two-dimensional phase space corresponding to the horizontal and vertical coordinate axes, respectively. Furthermore, an extended setup utilizing a torodial mirror for complete 4D-Wigner reconstruction has been accomplished and tested using radiation from a multimode Nd:VO4 laser.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G2 - FLASH (POF3-622) (POF3-622)

Experiment(s):

1. FLASH Beamline BL2 (FLASH)

Appears in the scientific report 2020

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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