A versatile X-ray diffraction station at LNLS (Brazil)
Versatility was a major consideration in the project to provide an X‐ray diffraction station at LNLS. At least two techniques are possible at the station: powder diffraction and multiple single‐crystal diffraction. A two‐crystal monochromator based on monolithic elastic translators, developed at LNL...
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Published in | Journal of synchrotron radiation Vol. 5; no. 3; pp. 491 - 493 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
5 Abbey Square, Chester, Cheshire CH1 2HU, England
International Union of Crystallography
01.05.1998
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Subjects | |
Online Access | Get full text |
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Summary: | Versatility was a major consideration in the project to provide an X‐ray diffraction station at LNLS. At least two techniques are possible at the station: powder diffraction and multiple single‐crystal diffraction. A two‐crystal monochromator based on monolithic elastic translators, developed at LNLS, with sagittal focusing by the second crystal, allows 10 mrad of a ≥2 keV monochromatic beam to be used on the diffractometer. The station is equipped with a fast scintillation detector, imaging plates, a high‐energy‐resolution pin‐diode detector, an ionization chamber and a high‐angular‐resolution soller slit. The data collection and control hardware and software were also developed at LNLS. The θ–2θ goniometry for powder diffraction on this 1 m‐diameter diffractometer is based on commercial rotation tables. The multiple single‐crystal goniometry is realized by an independent elastic axis driven by differential micrometers for both high‐ and low‐resolution angular movements. At least four independent axes can be positioned as necessary on the diffractometer table. Powder diffractograms and double‐crystal rocking curves collected with the synchrotron beam show the expected quality. |
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Bibliography: | istex:D3C37B5E34809AAC4A4C81A6B1D966E7C47EFC7F ark:/67375/WNG-R9037MDQ-8 ArticleID:JSYHT3218 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1600-5775 0909-0495 1600-5775 |
DOI: | 10.1107/S0909049598000685 |