Patent ID: 7039160

Claim:
An apparatus for generating monochromatic x-ray radiation comprising: an x-ray source which emits x-rays from a focus, a monochromator, and a slit collimator disposed in succession relative to each other, with said focus said x-ray source and the slit of said collimator in a fixed positional relation to each other, so that x-rays of a specific energy among the x-rays emitted by the x-ray source are reflected at the monochromator and subsequently pass through the slit of the slit collimator, and an adjustment mechanism connected to said monochromator for displacing only said monochromator relative to both said x-ray source and said slit collimator while emitting x-rays from said x-ray source and while substantially maintaining a reflection angle for reflection of said x-rays of said specific energy at said monochromator, for correspondingly displacing an x-ray beam emerging from said slit of said slit collimator through a scanning angle range.