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231223s2003 xx ||||| 00| ||eng c |
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|a pubmed25n0476.xml
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|a (DE-627)NLM142775800
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|a (NLM)14551442
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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 Ikeda, Takuji
|e verfasserin
|4 aut
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|a High-resolution and high-intensity powder diffractometer at BL15XU in SPring-8
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|c 2003
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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 20.01.2004
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|a Date Revised 10.12.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a A new ultra-high-resolution powder diffractometer for synchrotron radiation has been constructed at beamline BL15XU, SPring-8. The two-axis diffractometer is optimized for high-flux and high-coherent X-ray beams, which are provided by combining a planar undulator and a large offset rotated-inclined Si(111) double-crystal monochromator. The optics design of the diffractometer is based on transmission geometry, which employs a capillary specimen and reflection geometries using a flat-plate specimen. The intensity data are collected using a 2theta step-scan technique in both geometries. The diffractometer can be arranged in a variety of optical configurations, e.g. simple receiving slits, flat crystal analyzer of Ge(111) or Si(111), and in-vacuum-type long horizontal parallel slits. A minimum full width at half-maximum against 2theta was 0.00572 degrees at lambda = 0.63582 A for the (200) reflections from Si powder in the transmission geometry employing the Ge(111) crystal analyzer. A wide temperature range (32-900 K), which is controlled by a He/N(2) gas stream system, is available. 288 structure parameters of a zeolite ZSM-5 sample have been demonstrated to successfully refine with a R(wp) value of 6.96% by a Rietveld analysis of the high-resolution powder diffraction data from a 1 mm-diameter capillary specimen
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|a Comparative Study
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|a Evaluation Study
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|a Journal Article
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|a Validation Study
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|a Zeolites
|2 NLM
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|a 1318-02-1
|2 NLM
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|a Nisawa, Atsushi
|e verfasserin
|4 aut
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|a Okui, Masato
|e verfasserin
|4 aut
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| 700 |
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|a Yagi, Nobuhiro
|e verfasserin
|4 aut
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|a Yoshikawa, Hideki
|e verfasserin
|4 aut
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|a Fukushima, Sei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1998
|g 10(2003), Pt 6 vom: 01. Nov., Seite 424-9
|w (DE-627)NLM09824129X
|x 0909-0495
|7 nnns
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| 773 |
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|g volume:10
|g year:2003
|g number:Pt 6
|g day:01
|g month:11
|g pages:424-9
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|a GBV_USEFLAG_A
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|a GBV_ILN_2005
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|a AR
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|d 10
|j 2003
|e Pt 6
|b 01
|c 11
|h 424-9
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