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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1107/S0909049512043415
|2 doi
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|a eng
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|a Matsushita, Tadashi
|e verfasserin
|4 aut
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|a A simultaneous multiple angle-wavelength dispersive X-ray reflectometer using a bent-twisted polychromator crystal
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 13.06.2013
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|a Date Revised 21.10.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a An X-ray reflectometer has been developed, which can simultaneously measure the whole specular X-ray reflectivity curve with no need for rotation of the sample, detector or monochromator crystal during the measurement. A bent-twisted crystal polychromator is used to realise a convergent X-ray beam which has continuously varying energy E (wavelength λ) and glancing angle α to the sample surface as a function of horizontal direction. This convergent beam is reflected in the vertical direction by the sample placed horizontally at the focus and then diverges horizontally and vertically. The normalized intensity distribution of the reflected beam measured downstream of the specimen with a two-dimensional pixel array detector (PILATUS 100K) represents the reflectivity curve. Specular X-ray reflectivity curves were measured from a commercially available silicon (100) wafer, a thin gold film coated on a silicon single-crystal substrate and the surface of liquid ethylene glycol with data collection times of 0.01 to 1000 s using synchrotron radiation from a bending-magnet source of a 6.5 GeV electron storage ring. A typical value of the simultaneously covered range of the momentum transfer was 0.01-0.45 Å(-1) for the silicon wafer sample. The potential of this reflectometer for time-resolved X-ray studies of irreversible structural changes is discussed
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arakawa, Etsuo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Voegeli, Wolfgang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yano, Yohko F
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 20(2013), Pt 1 vom: 01. Jan., Seite 80-8
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
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|g volume:20
|g year:2013
|g number:Pt 1
|g day:01
|g month:01
|g pages:80-8
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| 856 |
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|u http://dx.doi.org/10.1107/S0909049512043415
|3 Volltext
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