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Asymmetric Crystals Re-Visited

Published online by Cambridge University Press:  06 March 2019

Michael A. Short  and
Stephen E. Robie
Michael A. Short
Affiliation:
SRS Technologies, Irvine, California
Stephen E. Robie
Affiliation:
Scintag, Inc., Santa Clara, California
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Extract

An asymmetrically cut single crystal is, generally, a large flat X-ray monochromating crystal whose principal surface has been cut an angle to the diffracting planes being utilised.

The use of such a crystal was suggested by Stephen and Barnes in 1935 as a means of obtaining a narrow intense beam of monochromatic X-rays. Fankuchen was first to demonstrate this effect experimentally. A number of symmetrically cut mosaic single crystals, including lithium fluoride, was studied by Evans, Hirsch and Kellar and by Gay, Hirsch and Kellar in the beam condensing (beam narrowing) mode only.

Type
VI. XRD Techniques, Instrumentation and P.C. Applications
Information
Advances in X-Ray Analysis , Volume 31: Thirty-Sixth Annual Conference on Applications of X-ray Analysis, August 3-7, 1987 , 1987 , pp. 395 - 401
Copyright
Copyright © International Centre for Diffraction Data 1987

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References

1. Stephen, R.A. and Barnes, R.J., “New Techniques for Obtaining X-Rey PowderPatterns”, Nature, 137, 532 (1936).Google Scholar
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