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Focussing and parallel beam X-ray with various geometries
Focussing X-Ray Optics
FOCUSSING X-RAY OPTICS
Focussing X-ray optics are artificial optical components with a 1-dimensional lattice deposited on a substrate. These optical devices convert a divergent incoming beam into a focussing one. To obtain high efficiency, the d-spacing of the lattice has to be changed from the front end to the rear end of the optics. The device needs to have an elliptical figure of curvature to produce a focussing beam. The focus of the X-ray source is located in one of the two focal points of the ellipse.
Focussing X-ray Optics: Generation of a monochromatic 1-dimensional focussed beam
Spectral lines Cr, Co, Cu, Mo, Ag (others on request)
Mean reflectivity R > 70 %
Monochromasy Ka1 + Ka2
Mirror length L = 20 mm ... L = 80 mm (on customers request)
X-ray source geometry Line focus preferred
Width of focus b dependent on spectral line, geometry and mirror length
Geometry customized
Beam path and main parameters of a focussing X-ray optics