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Crystal monochromator with a resolution beyond 108 (2001)

Toellner, T. S. ; Hu, M. Y. ; Sturhahn, W. ; [et al.]

Chester : International Union of Crystallography (IUCr)

Journal of synchrotron radiation 8 (2001), S. 1082-1086

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ISSN: 1600-5775

Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001

Topics: Geosciences , Physics

Notes: Monochromatization with crystal diffraction has been achieved to a resolution (λ/Δλ) beyond 108. The monchromator is specifically designed for 23.880 keV synchrotron radiation (λ = 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 µeV was measured, corresponding to a resolution of 1.7 × 108. Methods of improving efficiency, wavelength stability and resolution are discussed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1107/S0909049501007257

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