Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/67804
Title: Speckle reduction in the small-angle light scattering technique using sample vibration
Authors: Ng, T.W. 
Keywords: Characterization
Small-angle light scattering
Speckle
Vibration
Issue Date: 30-Apr-1997
Source: Ng, T.W. (1997-04-30). Speckle reduction in the small-angle light scattering technique using sample vibration. Journal of Polymer Science, Part B: Polymer Physics 35 (6) : 937-943. ScholarBank@NUS Repository.
Abstract: Experimental patterns obtained using the small-angle light scattering technique for thin-film polymer studies are fraught with speckles arising from the effect of interspherulitic interference. The presence of speckles hampers efforts in characterizing the spherulitic structure. Using a divergent beam increases the number of scattering sites and results in a reduction of the degree of speckling. Nevertheless, this decimates the ability of analyzing the pattern at low-scattering angles. Employing an expanded collimated beam produces the same effect but necessitates the use of specially designed optical components. This article outlines a novel technique that involves simple vibration of the polymer sample. Experimental results confirm its efficacy in reducing speckles without limiting the ability for analysis at low-scattering angles. © 1997 John Wiley & Sons, Inc.
Source Title: Journal of Polymer Science, Part B: Polymer Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/67804
ISSN: 08876266
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

52
checked on Jan 19, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.