FIELD: the invention refers to the field of investigating liquid samples with the aid of an x-ray beam.
SUBSTANCE: the essence of the mode is that controlling of an x-ray beam is executed with the aid of successive reflection of a preliminary monochromatized beam of a synchrotron emission from two mirrors with a cylindrical and a plane surfaces and rotation of the second mirror around its axle normal to the plane of scattering of x-ray rays. At that rotation of the first mirror around its axle is carried out normal to the plane of scattering of x-ray beams. At that the angle θ1 between the beam and the first mirror and the angle θ2 between the beam and the second mirror are tied by a definite ratio.
EFFECT: provides invariability of the field of illumination of the horizontally located surface of the investigated liquid sample at various values of the angle between the x-ray beam and the surface of the sample.
1 dwg
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