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A device for low‐temperature crystal reorientation in data collection with the oscillation method
Author(s) -
Darovsky A.,
Coppens P.
Publication year - 1998
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889897009199
Subject(s) - cryostat , refrigerator car , oscillation (cell signaling) , rotation (mathematics) , crystal (programming language) , materials science , liquid helium , helium , physics , atomic physics , condensed matter physics , chemistry , thermodynamics , geometry , superconductivity , biochemistry , mathematics , computer science , programming language
A cold finger attached to the second refrigeration stage of a DE‐201 Displex closed‐cycle helium refrigerator has been equipped with a miniature DC motor. The device allows reorientation of the crystal at low temperature, without remounting or warming to ambient temperature. The axis around which the crystal is rotated is inclined by 45° to the cryostat axis, which gives a 90° change in orientation of the crystal upon 180° rotation.