The phase problem in neutron diffraction

Sikka, S. K. (1983) The phase problem in neutron diffraction Proceedings of the Indian Academy of Sciences - Chemical Sciences, 92 (4-5). pp. 403-414. ISSN 0253-4134

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The structure of any crystal can now be determinedab initio from the neutron Bragg intensity data alone, without recourse to the x-ray structural analysis. This has been made possible by the reduction in data collection times due to the availability of increased neutron fluxes at the samples and the extensive development of the phase determining procedures for neutron diffraction in the last 15 years. In this review, we describe the applications of direct methods, anomalous dispersion techniques and difference Patterson methods and discuss why these methods are applicable in neutron diffraction. Their limitations are also discussed. Some newer methods like resonance-modulated diffraction and use of 'Renninger effect' to measure the structure invariants are also touched upon.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Neutron Diffraction; Patterson Method; Anomalous Dispersion Techniques; Direct Methods
ID Code:88246
Deposited On:27 Mar 2012 11:47
Last Modified:27 Mar 2012 11:47

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