A proof-of-principle experiment of a novel harmonics separation optics for synchrotron facilities

被引:5
|
作者
Oberta, P. [1 ,2 ]
Hrdy, J. [1 ]
Mikulik, P. [3 ]
机构
[1] Acad Sci Czech Republic, Inst Phys, Vvi, CZ-18221 Prague 8, Czech Republic
[2] Rigaku Innovat Technol Europe Sro, CZ-14221 Prague 4, Czech Republic
[3] Masaryk Univ, Cent European Inst Technol, CEITEC, CZ-61137 Brno, Czech Republic
来源
关键词
harmonics separation; diffractive-refractive optics; inclined geometry; higher order; CRYSTAL MONOCHROMATORS; X-RADIATION;
D O I
10.1107/S0909049512036618
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
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.
引用
收藏
页码:1012 / 1014
页数:3
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