The `lattice‐parameter comparator': a symmetrical axially reversible mounting for two goniometer heads | Zendy

Lang A. R. | Zendy

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The `lattice‐parameter comparator': a symmetrical axially reversible mounting for two goniometer heads

Author(s) -

Lang A. R.

Publication year - 1995

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/s0021889894012665

Subject(s) - goniometer , axial symmetry , optics , lattice (music) , physics , diffraction , synchrotron radiation , materials science , acoustics , quantum mechanics

A rigid highly symmetrical rectangular frame (physical symmetry mmm ) can carry two goniometer heads coaxially, but opposed apex to apex; the frame itself is axially reversible. Used with monochromated synchrotron radiation, it permits quick inversion of crystal orientations by 180° rotations about the diffraction vector, as is required for comparison of lattice parameters in different parts of a single‐crystal or between two separate crystals.

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