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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577518006410
|2 doi
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|a eng
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|a Takayama, Yuki
|e verfasserin
|4 aut
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|a Atmospheric coherent X-ray diffraction imaging for in situ structural analysis at SPring-8 Hyogo beamline BL24XU
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|c 2018
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 20.11.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Coherent X-ray diffraction imaging (CXDI) is a promising technique for non-destructive structural analysis of micrometre-sized non-crystalline samples at nanometre resolutions. This article describes an atmospheric CXDI system developed at SPring-8 Hyogo beamline BL24XU for in situ structural analysis and designed for experiments at a photon energy of 8 keV. This relatively high X-ray energy enables experiments to be conducted under ambient atmospheric conditions, which is advantageous for the visualization of samples in native states. The illumination condition with pinhole-slit optics is optimized according to wave propagation calculations based on the Fresnel-Kirchhoff diffraction formula so that the sample is irradiated by X-rays with a plane wavefront and high photon flux of ∼1 × 1010 photons/16 µmø(FWHM)/s. This work demonstrates the imaging performance of the atmospheric CXDI system by visualizing internal voids of sub-micrometre-sized colloidal gold particles at a resolution of 29.1 nm. A CXDI experiment with a single macroporous silica particle under controlled humidity was also performed by installing a home-made humidity control device in the system. The in situ observation of changes in diffraction patterns according to humidity variation and reconstruction of projected electron-density maps at 5.2% RH (relative humidity) and 82.6% RH at resolutions of 133 and 217 nm, respectively, were accomplished
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|a Journal Article
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|a coherent X-ray diffraction imaging
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|a humidity control
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|a non-crystalline samples
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|a structural analysis
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|a Takami, Yuki
|e verfasserin
|4 aut
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1 |
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|a Fukuda, Keizo
|e verfasserin
|4 aut
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|a Miyagawa, Takamasa
|e verfasserin
|4 aut
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|a Kagoshima, Yasushi
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 25(2018), Pt 4 vom: 01. Juli, Seite 1229-1237
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|x 1600-5775
|7 nnns
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| 773 |
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|g volume:25
|g year:2018
|g number:Pt 4
|g day:01
|g month:07
|g pages:1229-1237
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|u http://dx.doi.org/10.1107/S1600577518006410
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