Optimum angles for multi-angle elastic light scattering experiments

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Proceedings titleProceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition (IMECE2011)
ConferenceASME 2011 International Mechanical Engineering Congress & Exposition (IMECE2011), 11-17 November 2011, Denver, Colorado, USA
AbstractIn multiangle elastic light scatterin (MAELS) experiments, the morphology of aerosolized particles is inferred by shining collimated radiation through the aerosol and then measuring the scattered light intensity over a set of angles. In the case of soot-laden aerosols MAELS can be used to recover, among other things, the size distribution of soot aggregates. This involves solving an ill-posed set of equations, however. While previous work focused on regularizing this inverse problem using Bayesian priors, this paper presents a design-of-experiment methodology for identifying the set of measurement angles that minimizes its ill-posedness. The inverse problem produced by the optimum angle set requires less regularization and is less sensitive to noise, compared with two other measurement angle sets commonly used to carry out MAELS experiments.
Publication date
AffiliationNRC Institute for Chemical Process and Environmental Technology; National Research Council Canada
Peer reviewedYes
NRC number53022
NPARC number19554419
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Record identifier0a8d6fff-682c-4a42-9b10-c645c12fc13a
Record created2012-02-24
Record modified2016-05-09
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