Contrast variation in spin-echo small angle neutron scattering

Published

January 25, 2012

Author(s)

Xin Li, Bin Wu, Yun Liu, Roger Pynn, Chwen-Yang Shew, Gregory S. Smith, Kenneth W. Herwig, J. Lee Robertson, Wei-Ren Chen, Li Liu

Abstract

The use of contrast variation in spin-echo small angle neutron scattering (SESANS) experiments is discussed for the case of colloidal structural investigation. Based on the calculations for several model systems, we find that the contrast variation SESANS technique is not sensitive to the structural characteristics of collodial suspensions consisting of particles with uniform scattering lenght density profiles. However, to resolve structural heterogeneity, at both intra- and inter-collodial length scales, is clearly demonstrated. The prospect of using this new technique to investigate structural information that is difficult to probe in other ways is also explored.

Citation

Journal of Physics: Condensed Matter

Volume

24

Issue

6

Pub Type

Journals

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DOI Link

Keywords

small angle neutron scattering, contrast variation

Citation

Li, X. , Wu, B. , Liu, Y. , Pynn, R. , Shew, C. , Smith, G. , Herwig, K. , Robertson, J. , Chen, W. and Liu, L. (2012), Contrast variation in spin-echo small angle neutron scattering, Journal of Physics: Condensed Matter, [online], https://doi.org/10.1088/0953-8984/24/6/064115 (Accessed February 11, 2025)