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|a (NLM)11486410
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|a DE-627
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|a eng
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|a Koganezawa, T
|e verfasserin
|4 aut
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|a Phase determination by wavelength-modulated diffraction. I. Centrosymmetric case
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|c 2001
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 23.08.2001
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|a Date Revised 05.06.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Wavelength-modulated diffraction was developed by Iwasaki, Yurugi & Yoshimura [Acta Cryst. (1999), A55, 864-870] as a method for phase determination, in which the intensity of Bragg reflections is recorded using radiation whose wavelength is changing continually over a range in the vicinity of the absorption edge of an atom in the crystal. Using a ferrocene derivative crystal (chemical formula C36H32O7Fe, space group P2(1)/a) with the Fe atoms chosen as anomalous scatterers, measurements were made of the intensity gradient dI/d lambda of the reflections with an imaging plate as a detector on a synchrotron radiation source at Ritsumeikan University. In the case of a centrosymmetric crystal, the phase of the structure factor could be derived by measuring only the sign of dI/d lambda at one wavelength in the range. Of 104 reflections measured, the correct phase was assigned to 101 reflections. A discussion is given on the errors involved and on the limits of application of the method
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|a Journal Article
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|a Yoshimura, Y
|e verfasserin
|4 aut
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1 |
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|a Nakamura, N
|e verfasserin
|4 aut
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| 700 |
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|a Iwasaki, H
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 8(2001), 3 vom: 01. Mai, Seite 1035-9
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
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|g volume:8
|g year:2001
|g number:3
|g day:01
|g month:05
|g pages:1035-9
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|a GBV_ILN_40
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|a GBV_ILN_350
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|a GBV_ILN_2005
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|a AR
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|d 8
|j 2001
|e 3
|b 01
|c 05
|h 1035-9
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