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Manipulator for Gandolfi‐attachment X‐ray spindles
Author(s) -
Myer G. H.
Publication year - 1976
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/s002188987601087x
Subject(s) - materials science , crystallography , manipulator (device) , x ray , composite material , computer science , chemistry , physics , optics , robot , artificial intelligence
Manipulator for Gandolfi-attachment X-ray spindles An inexpensive, easily obtained tissue forcep simpli f ies the handling of single crystals mounted on glass capi l lar ies and held on a brass pin. Use is made of a mouse-tooth, 1 x 2 tooth forcep that is avai lable through most apparatus supply companies. The two teeth can be spread to provide a larger opening. cubic materials to direction cosines quickly and easily. In practice it was found better to combine such a net at equal angular intervals with a table of cosines at s imi lar intervals, rather than to construct a net which used equal intervals of the cosine, since such cosine interval nets have very large spacings between adjacent l ines in some regions because of the large variat ion of angle with cosine near 0 °. Strictly speaking, therefore, the practical version of this net records direction angles. Intervals of 2 ° were found most practical for nets of 200 mm or 300 mm diameter, smal ler intervals were found to be unpleasantly confusing to use and only marginal ly more accurate. Fig. 1 shows a net at 10 ° intervals. Clarke, P. T. (1976). Standard Stereograms for Mater ia ls Science. London: HMSO. In the press. Smaill, J. S. (1972). Meta l lu rg ica l Stereographic Project ions. London: Hilger.