A proof-of-principle experiment of a novel harmonics separation optics for synchrotron facilities
| Authors | |
|---|---|
| Year of publication | 2012 |
| Type | Article in Periodical |
| Magazine / Source | Journal of Synchrotron Radiation |
| MU Faculty or unit | |
| Citation | |
| Web | http://scripts.iucr.org/cgi-bin/paper?S0909049512036618 |
| Doi | http://dx.doi.org/10.1107/S0909049512036618 |
| Field | Solid matter physics and magnetism |
| Keywords | harmonics separation; diffractive-refractive optics; inclined geometry; higher order |
| Description | A proof-of-principle experiment of a novel harmonics separation optics for synchrotron facilities is presented. The harmonic separator is a Si crystal cut in an inclined geometry in which the impinging beam undergoes a diffractive-refractive effect owing to the dispersive nature of X-ray refraction. A polychromatic beam containing higher-order energies is spatially separated behind the separator into individual monochromatic diffraction spots. A synchrotron experiment at a bending-magnet beamline with 7 keV fundamental energy is presented. The spot of the third-order harmonic of 21 keV is deviated from the fundamental by 0.35 mm at a distance 1 m behind the device. |
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