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A versatile and inexpensive XRD specimen holder for highly radioactive or hazardous specimens

Published online by Cambridge University Press:  05 March 2012

D. M. Strachan
Affiliation:
Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352
H. T. Schaef
Affiliation:
Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352
M. J. Schweiger
Affiliation:
Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352
K. L. Simmons
Affiliation:
Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352
L. J. Woodcock
Affiliation:
Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352
M. K. Krouse
Affiliation:
Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352

Abstract

Two XRD specimen holders we designed for use with highly radioactive specimens are described. An injection mold was fabricated to allow inexpensive production of one of the holders. These holders are suitable for single-time use. The ease of use and disposable nature of this holder resulted in a dramatic reduction in personnel exposure and an uncontaminated diffraction unit. A second holder, based on the design of the first, is used to obtain XRD patterns from powders where preferred orientation is an issue and from clays. Both holders result in negligible background, since the specimen is essentially levitated in the X-ray beam. This is a benefit over other methods, such as collodion, that introduce significant background to the XRD pattern.

Type
Technical Articles
Copyright
Copyright © Cambridge University Press 2003

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