Präzisions-Probendrehvorrichtung

摘要

The invention relates to a device for the precision rotation of samples, which device is mounted on a diffractometer and used notably for X-ray or synchrotron radiation diffraction experiments. Said device comprises: a centering element (26) which is held at one end of a motor-driven rotating shaft (22) and can be displaced in a plane orthogonal to the axis of rotation of the rotating shaft (22); a sample holder (30) which is fixed to or formed as a single piece with the centering element (26) and holds a sample (32) substantially centrally in relation to the axis of rotation in an X-ray or synchrotron radiation beam (S); and at least one micrometric finger (36) which is arranged in the area of the centering element (26) and by means of a micrometric finger drive device can be positioned orthogonally to the axis of rotation of the rotating shaft (22).