[en] This invention relates to a diffractometer equipped with a double-focusing analyzing crystal for monochromatizing and focusing the X beam. The construction makes use of a concave monocrystal with a well-finished opposite surface. The standard construction applies dislocation-poor monocrystals of silicon or germanium. (G.J.P.)
Original Title
Roentgen onderzoek apparaat met dubbel focusserend kristal