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A 2 m inelastic X-ray scattering spectrometer at CMC-XOR, Advanced Photon Source


JP Hill, DS Coburn, YJ Kim, T Gog DM Casa, CN Kodituwakku, H Sinn

JOURNAL OF SYNCHROTRON RADIATION
14 (4), July, 361-365 (2007)
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Abstract:
The design and commissioning of an inelastic X-ray scattering instrument at CMC-XOR at the Advanced Photon Source is reported. The instrument features a 2 m vertical-scattering arm with a novel counterweight design to reduce the twisting moment as the arm is moved in the scattering plane. A Ge(733) spherical analyzer was fabricated and an overall resolution of 118 meV (FWHM) was obtained with a Si(444) monochromator and a Si(111) premonochromator. Early results from a representative cuprate, La2CuO4 , are reported.

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