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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577522002582
|2 doi
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|a pubmed24n1514.xml
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|a (NLM)35510998
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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 Glazyrin, K
|e verfasserin
|4 aut
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|a Sub-micrometer focusing setup for high-pressure crystallography at the Extreme Conditions beamline at PETRA III
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 27.08.2024
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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 Scientific tasks aimed at decoding and characterizing complex systems and processes at high pressures set new challenges for modern X-ray diffraction instrumentation in terms of X-ray flux, focal spot size and sample positioning. Presented here are new developments at the Extreme Conditions beamline (P02.2, PETRA III, DESY, Germany) that enable considerable improvements in data collection at very high pressures and small scattering volumes. In particular, the focusing of the X-ray beam to the sub-micrometer level is described, and control of the aberrations of the focusing compound refractive lenses is made possible with the implementation of a correcting phase plate. This device provides a significant enhancement of the signal-to-noise ratio by conditioning the beam shape profile at the focal spot. A new sample alignment system with a small sphere of confusion enables single-crystal data collection from grains of micrometer to sub-micrometer dimensions subjected to pressures as high as 200 GPa. The combination of the technical development of the optical path and the sample alignment system contributes to research and gives benefits on various levels, including rapid and accurate diffraction mapping of samples with sub-micrometer resolution at multimegabar pressures
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|a Journal Article
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|a X-ray diffraction
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|a diamond anvil cells
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|a high pressure
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|a phase correcting plate
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|a sub-micrometer focusing
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|a Khandarkhaeva, S
|e verfasserin
|4 aut
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|a Fedotenko, T
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|a Dong, W
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|a Laniel, D
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|a Seiboth, F
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|a Schropp, A
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|a Garrevoet, J
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|a Brückner, D
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|a Falkenberg, G
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|a Kubec, A
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|a David, C
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|a Wendt, M
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|a Wenz, S
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|a Dubrovinsky, L
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|a Dubrovinskaia, N
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|a Liermann, H P
|e verfasserin
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 29(2022), Pt 3 vom: 01. Mai, Seite 654-663
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
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|g volume:29
|g year:2022
|g number:Pt 3
|g day:01
|g month:05
|g pages:654-663
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|u http://dx.doi.org/10.1107/S1600577522002582
|3 Volltext
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|d 29
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|h 654-663
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