A first-order correction for extinction in crystals

Chandrasekhar, S. (1956) A first-order correction for extinction in crystals Acta Crystallographica, 9 . pp. 954-956. ISSN 0365-110X

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Official URL: http://scripts.iucr.org/cgi-bin/paper?S0365110X560...

Related URL: http://dx.doi.org/10.1107/S0365110X56002667


A method of effecting a first-order correction for extinction in crystals is suggested. It involves an accurate measurement of the integrated intensity of a particular reflexion for X-rays polarized perpendicular and parallel respectively to the plane of incidence. The change of polarizaton alters the effective structure factor, and consequently the extinction, by a known quantity. It is shown that from the resulting two relations for the integrated intensity |F| may be estimated without making any special assumptions as to the nature of the extinction, i.e., whether it is primary or secondary or both.

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ID Code:7954
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