Journal
JOURNAL OF SYNCHROTRON RADIATION
Volume 18, Issue -, Pages 299-301Publisher
WILEY-BLACKWELL
DOI: 10.1107/S0909049510049204
Keywords
diffractive-refractive optics; X-ray synchrotron radiation monochromator; X-ray crystal monochromator; harmonics separation
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Funding
- Institutional Research Plan AS CR [AVOZ 10100522]
- MPO CR [FR-TI1/412]
- Ministry of Education of the Czech Republic [MSM 0021622410]
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A new kind of two channel-cut crystals X-ray monochromator in dispersive (+,-,-,+) position which spatially separates harmonics is proposed. The diffracting surfaces are oriented so that the diffraction is inclined. Owing to refraction the diffracted beam is sagittally deviated. The deviation depends on wavelength and is much higher for the first harmonics than for higher harmonics. This leads to spatial harmonics separation. The idea is supported by ray-tracing simulation.
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