Zobrazeno 1 - 10
of 185
pro vyhledávání: '"F. Siewert"'
Autor:
S. Dziarzhytski, M. Biednov, B. Dicke, A. Wang, P. S. Miedema, R. Y. Engel, J. O. Schunck, H. Redlin, H. Weigelt, F. Siewert, C. Behrens, M. Sinha, A. Schulte, B. Grimm-Lebsanft, S. G. Chiuzbăian, W. Wurth, M. Beye, M. Rübhausen, G. Brenner
Publikováno v:
Structural Dynamics, Vol 7, Iss 5, Pp 054301-054301-12 (2020)
We present the experimental end-station TRIXS dedicated to time-resolved soft x-ray resonant inelastic x-ray scattering (RIXS) experiments on solid samples at the free-electron laser FLASH. Using monochromatized ultrashort femtosecond XUV/soft x-ray
Externí odkaz:
https://doaj.org/article/690fafd1574747b484def27cb3c906a9
Autor:
E. La Francesca, M. Angelucci, A. Liedl, L. Spallino, L. A. Gonzalez, I. Bellafont, F. Siewert, M. G. Sertsu, A. Sokolov, F. Schäfers, R. Cimino
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 8, p 083101 (2020)
For the design of high-performance particle accelerators and vacuum systems for high-energy colliders, the choice of materials and of their surface treatment is an essential prerequisite. Physical and optical properties of such materials and their co
Externí odkaz:
https://doaj.org/article/56dce77882e648d1af29cf323306ad79
Autor:
S. Roling, H. Zacharias, L. Samoylova, H. Sinn, Th. Tschentscher, O. Chubar, A. Buzmakov, E. Schneidmiller, M. V. Yurkov, F. Siewert, S. Braun, P. Gawlitza
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 17, Iss 11, p 110705 (2014)
For the European x-ray free electron laser (XFEL) a split-and-delay unit based on geometrical wavefront beam splitting and multilayer mirrors is built which covers the range of photon energies from 5 keV up to 20 keV. Maximum delays between Δτ=±2.
Externí odkaz:
https://doaj.org/article/90bc9576fd1d45c09ac43837dadc0aaf
Akademický článek
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Akademický článek
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Autor:
I V, Kozhevnikov, E O, Filatova, A A, Sokolov, A S, Konashuk, F, Siewert, M, Störmer, J, Gaudin, B, Keitel, L, Samoylova, H, Sinn
Publikováno v:
Journal of synchrotron radiation. 22(2)
The use of soft X-rays near the carbon edge of absorption (270-300 eV) greatly enhances studies in various branches of science. However, the choice of reflecting coatings for mirrors operating in free-electron and X-ray free-electron laser (FEL and X
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4e2d0c5f65f5f0e7256a94cf0b79444c
https://pubmed.ncbi.nlm.nih.gov/25723936
https://pubmed.ncbi.nlm.nih.gov/25723936
Autor:
F Siewert
Ultra precise reflective and diffractive optical elements like blazed diffraction gratings or ultra precise mirrors of flat, elliptic, parabolic, or other shapes have become key components in today s synchrotron optics. These optical components featu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2c57f717a4892c1c905968b3670c58d
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=78384
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=78384
Autor:
R. Dietsch, A. Rack, T. Weitkamp, M. Riotte, T. Rack, T. Holz, M. Krämer, D. Weissbach, Ch. Morawe, F. Siewert, M. Meduňa, P. Cloetens, E. Ziegler, Ian McNulty, Catherine Eyberger, Barry Lai
Publikováno v:
AIP Conference Proceedings.
We present a study in which multilayers of different periodicity (from 2.5 to 5.5 nm), composition (W/Si, Mo/Si, Pd/B 4 C , Ru/B 4 C ), and numbers of layers have been compared. Particularly, we chose mirrors with similar intrinsic quality (roughness
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2923216498721e46bd914c1c8689f04f
https://doi.org/10.1063/1.3625308
https://doi.org/10.1063/1.3625308
Autor:
M. Störmer, C. Horstmann, F. Siewert, F. Scholze, M. Krumrey, F. Hertlein, M. Matiaske, J. Wiesmann, J. Gaudin, R. Garrett, I. Gentle, K. Nugent, S. Wilkins
Publikováno v:
ResearcherID
X‐ray mirrors are needed for beam guidance, beam alignment and monochromatisation at third‐generation synchrotron light sources (PETRA III) and forthcoming Free‐Electron Lasers (LCLS, European XFEL). Amorphous carbon coatings are currently used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::013022db3885de942a086ac6bb31a965
https://doi.org/10.1063/1.3463321
https://doi.org/10.1063/1.3463321
Autor:
S. Kalbfleisch, M. Osterhoff, K. Giewekemeyer, H. Neubauer, S. P. Krüger, B. Hartmann, M. Bartels, M. Sprung, O. Leupold, F. Siewert, T. Salditt, R. Garrett, I. Gentle, K. Nugent, S. Wilkins
Publikováno v:
AIP Conference Proceedings.
We present the design and instrumentation of a novel holography endstation for the P10 coherence beamline at PETRA III at DESY. The experimental imaging scheme is based on a highly coherent and divergent (cone) beam illumination, achieved by fixed cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bcdbd895b64075d1eb10024dc409286
https://doi.org/10.1063/1.3463233
https://doi.org/10.1063/1.3463233