Journal Article/Contribution to a conference proceedings

PUBDB-2016-00502

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Hartmann wavefront sensors and their application at FLASH

Keitel, B. (Corresponding author)DESY* ; Plönjes, E.DESY* ; Kreis, S.DESY* ; Kuhlmann, M.DESY* ; Tiedtke, K.DESY* ; Mey, T.>Extern* ; Schäfer, B.>Extern* ; Mann, K.>Extern*

2016
IUCr Chester

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Please use a persistent id in citations: doi:10.1107/S1600577515020354

Abstract: Different types of Hartmann wavefront sensors are presented which are usable for a variety of applications in the soft X-ray spectral region at FLASH, the free-electron laser (FEL) in Hamburg. As a typical application, online measurements of photon beam parameters during mirror alignment are reported on. A compact Hartmann sensor, operating in the wavelength range from 4 to 38 nm, was used to determine the wavefront quality as well as aberrations of individual FEL pulses during the alignment procedure. Beam characterization and alignment of the focusing optics of the FLASH beamline BL3 were performed with λ13.5 nm/116 accuracy for wavefront r.m.s. (wrms) repeatability, resulting in a reduction of wrms by 33% during alignment.

Note: (c) International Union of Crystallography

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Contributing Institute(s):

1. Experimentebetreuung FLASH (FS-FL)

Research Program(s):

1. 6211 - Extreme States of Matter: From Cold Ions to Hot Plasmas (POF3-621) (POF3-621)
2. 6G2 - FLASH (POF3-622) (POF3-622)
3. IRUVX-PP - Preparatory Phase of the IRUVX-FEL Consortium (211285) (211285)

Experiment(s):

1. FLASH Beamline BL3 (FLASH)

Appears in the scientific report 2016

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Database coverage:
; ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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