Journal
JOURNAL OF SYNCHROTRON RADIATION
Volume 21, Issue -, Pages 325-332Publisher
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S1600577513030877
Keywords
soft X-ray beamline; soft X-ray optics; grating monochromator; active grating; resonant inelastic X-ray scattering; soft X-ray spectra
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Funding
- The National Science Council of Taiwan [NSC-100-2112-M-213-05-MY3]
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The design, construction and commissioning of a beamline and spectrometer for inelastic soft X-ray scattering at high resolution in a highly efficient system are presented. Based on the energy-compensation principle of grating dispersion, the design of the monochromator-spectrometer system greatly enhances the efficiency of measurement of inelastic soft X-rays scattering. Comprising two bendable gratings, the set-up effectively diminishes the defocus and coma aberrations. At commissioning, this system showed results of spin-flip, d-d and charge-transfer excitations of NiO. These results are consistent with published results but exhibit improved spectral resolution and increased efficiency of measurement. The best energy resolution of the set-up in terms of full width at half-maximum is 108 meV at an incident photon energy tuned about the Ni L-3-edge.
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