Crystal monochromator with a resolution beyond 10(8)

Monochromatization with crystal diffraction has been achieved to a resolution (lambda/delta lambda) beyond 10(8). The monchromator is specifically designed for 23.880 keV synchrotron radiation (lambda = 51.9 pm) for applications involving nuclear resonant scattering from 119Sn. The design uses asymm...

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Bibliographic Details
Published inJournal of synchrotron radiation Vol. 8; no. 4; pp. 1082 - 1086
Main Authors Toellner, T S, Hu, M Y, Sturhahn, W, Bortel, G, Alp, E E, Zhao, J
Format Journal Article
LanguageEnglish
Published United States 01.07.2001
Subjects
ADVANCED PHOTON SOURCE
MATERIALS SCIENCE
MONOCHROMATORS
MONOCRYSTALS
RESOLUTION
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Summary:Monochromatization with crystal diffraction has been achieved to a resolution (lambda/delta lambda) beyond 10(8). The monchromator is specifically designed for 23.880 keV synchrotron radiation (lambda = 51.9 pm) for applications involving nuclear resonant scattering from 119Sn. The design uses asymmetrically cut silicon (12 12 12) crystal reflections from two single-crystalline monoliths oriented in a dispersive geometry. A transmitted energy bandwidth of 140 +/- 20 mu eV was measured, corresponding to a resolution of 1.7 x 10(8). Methods of improving efficiency, wavelength stability and resolution are discussed.
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content type line 23
W-31-109-ENG-38
US Department of Energy (US)
ISSN:0909-0495
1600-5775
DOI:10.1107/S0909049501007257