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Manuscript Title: Laue crystallographic orientation with a fixed detector.
Authors: J.S. Reid
Program title: LAUEOR
Catalogue identifier: ACLK_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 75(1993)259
Programming language: Fortran.
Computer: SUN 4/470.
Operating system: UNIX.
RAM: 141K words
Word size: 32
Keywords: Crystallography, Laue scattering, Diffractometer Orientation, 4-circle diffractometer, Energy dispersive Apparatus.
Classification: 8.

Nature of problem:
Orientation of a 4-circle diffractometer with a single crystal sample, fixed detector and standard Eulerian arcs.

Solution method:
Using identifiable Laue reflections that pass close to the counter (but not necessarily into its centre), the orientation equations are solved directly or by least-squares fitting (as appropriate).

Restrictions:
There is no restriction on the symmetry of the sample. The maximum number of allowed data points is controlled by a PARAMETER statement and set at 20 in the distributed version.

Running time:
Less than 1 second.