Use of YB(66) as monochromator crystals for soft-energy EXAFS.

Use of YB(66) as monochromator crystals for soft-energy EXAFS. Research Abstract Details 

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Use of YB(66) as monochromator crystals for soft-energy EXAFS. Abstract Text:

A D Smith,B C Cowie,G Sankar,J M Thomas,

YB(66)(400) crystals present a new advance in monochromator crystals suitable for use at energies below 2 keV. In this paper a comparison of their performance with that provided by the more usual beryl and quartz crystals, which cover the same energy range, is presented. In general, the YB(66) crystals are much superior; however, they do exhibit a pair of large 'crystal glitch'-type features in the 1380-1440 eV region. These fall in the Mg K-EXAFS region and so can present a serious problem in studies of this edge for a wide range of materials. An important class of materials so afflicted are magnesium-substituted aluminophosphate molecular sieves (zeolites), which are used in many applications, in particular as solid acid catalysts for conversion of methanol to hydrocarbon.

Use of YB(66) as monochromator crystals for soft-energy EXAFS. Publishing Authors By Initials

AD Smith,BC Cowie,G Sankar,JM Thomas,

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Use of YB(66) as monochromator crystals for soft-energy EXAFS. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of synchrotron radiation

VOLUME: 5

Page Numbers: 716-8

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ISSN: 0909-0495

DAY: 1

MONTH: 05

YEAR: 1998

Use of YB(66) as monochromator crystals for soft-energy EXAFS. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Use of YB(66) as monochromator crystals for soft-energy EXAFS.

AFFILIATION: Daresbury Laboratory, Central Laboratories to the Research Councils, Warrington, Cheshire WA4 4AD, UK.

Country: Denmark

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MEDLINETA: J Synchrotron Radiat

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