| 摘要 |
<p>An apparatus for performing X-ray fluorescence as well as X-ray diffraction by means of only a single X-ray tube (2) which is preferably constructed as a fluorescence tube. Between the tube and the sample (12) there is arranged a primary collimator (40) (Soller slit unit) which is rotatable about an (imaginary) axis (44) through the X-ray focus of the tube (2), so that the angle of incidence ξ on the sample can be varied by rotation of the collimator. Because the diffraction detector channel (50, 52, 56) occupies a fixed position, a ξ scan is performed by rotation of the collimator (40). As a result, it is not necessary to equip the diffraction section of the apparatus with a (comparatively heavy and expensive) goniometer with an associated drive for the detector (56) and for the wavelength analysis crystal (52).</p> |
