Wavelet Analysis of Neutron Reflectivity

An application of wavelet multiresolution analysis (WMA) to phase-sensitive neutron specular reflection is described. By use of Daubechies-8 wavelets, it is shown how the WMA notions of trend and detail are well-suited to describing the effects of truncated data on the spatial behavior of the scatte...

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Bibliographic Details
Published in:Langmuir 2003-09, Vol.19 (19), p.7811-7817
Main Authors: Berk, N. F, Majkrzak, C. F
Format: Article
Language:English
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Summary:An application of wavelet multiresolution analysis (WMA) to phase-sensitive neutron specular reflection is described. By use of Daubechies-8 wavelets, it is shown how the WMA notions of trend and detail are well-suited to describing the effects of truncated data on the spatial behavior of the scattering length density (SLD) profiles inferred from measurements. In particular, the inaccessibility of certain spatial detail to real measurements is readily seen. A WMA fitting scheme for refining the SLD deduced from phase-inversion measurements in a manner consistent with the data-determined spatial resolution is demonstrated.
ISSN:0743-7463
1520-5827
DOI:10.1021/la034126w