| 摘要 |
<p>The method consists of irradiating a single crystal with an X-ray beam, and the device for carrying out the method is a diffractometer. The method involves examining the spots from the beams diffracted by the said single crystal through a longitudinal analyser window. The space which, it is assumed, ought to contain the said spots is scanned through the said longitudinal analyser window. The diffractometer for performing the method is mainly characterised by a mounting base 1, a goniometer stage 4 on the base 1, a support 11 for the crystal 13 to be examined, an X-ray source 45, a detector of position 21, at least one post 30, 31 fixed on to the base 1, and an arm 36 mounted on the said post so that it rotates. The X-ray source is fixed to the arm 36 so as to pivot around the crystal. Application to the determination of the crystal structure of a single crystal such as a protein. <IMAGE></p> |
