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Experimental techniques for observing dislocations by the Berg-Barrett method

Turner, A. P. L. and Vreeland, T., Jr. and Pope, D. P. (1968) Experimental techniques for observing dislocations by the Berg-Barrett method. Acta Crystallographica. Section A, Foundations of Crystallography, 24 (4). pp. 452-458. ISSN 0108-7673. https://resolver.caltech.edu/CaltechAUTHORS:20150211-121937186

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Abstract

Experimental problems in the application of the Berg-Barrett Method to the observation of dislocations in metal single crystals are discussed. The problem of background noise caused by fluorescence from the specimen and inelastic scattering is considered. A criterion for selecting an appropriate filter to discriminate against the background noise is presented. The problem of multiple images is discussed and a scheme for selecting diffraction geometry to eliminate unwanted images is presented. A detailed description of the relatively simple equipment used in Berg-Barrett work is given.


Item Type:Article
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http://dx.doi.org/10.1107/S0567739468000914DOIArticle
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Additional Information:© 1968 International Union of Crystallography. Received 30 October 1967. The work reported herein was sponsored by the U.S. Atomic Energy Commission under Contract AT(04-3)-473. Dr R.C. Blish II, and Mr Jeffrey A. Gorman kindly supplied the B-B plates showing slip bands in Zn and dislocations in Al. Discussions with Professor D.S. Wood during the initial stages of this study were very helpful. A.P.L. Turner wishes to express his thanks to the Fannie and John Hertz Foundation for fellowship support during the course of this work. CALT-473-22.
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Atomic Energy CommissionAT(04-3)-473
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CALT473-22
Issue or Number:4
Record Number:CaltechAUTHORS:20150211-121937186
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150211-121937186
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54726
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:11 Feb 2015 20:46
Last Modified:03 Oct 2019 08:00

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