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The T-matrix code Tsym for homogeneous dielectric particles with finite symmetries
SMHI, Research Department, Air quality.ORCID iD: 0000-0001-5695-1356
2013 (English)In: Journal of Quantitative Spectroscopy and Radiative Transfer, ISSN 0022-4073, E-ISSN 1879-1352, Vol. 123, 62-78 p.Article in journal (Refereed) Published
Abstract [en]

A T-matrix code tailored to non-axisymmetric particles with finite symmetries is described. The code exploits geometric symmetries of particles by use of group theoretical methods. Commutation relations of the T-matrix are implemented for reducing CPU-time requirements. Irreducible representations of finite groups are employed for alleviating ill-conditioning problems in numerical computations. Further, an iterative T-matrix method for particles with small-scale surface perturbations is implemented. The code can compute both differential and integrated optical properties of particles in,either fixed or random orientation. Methods for testing the convergence and correctness of the computational results are discussed. The package also includes a database of pre-computed group-character tables, as well as an interface to the GAP programming language for computational group theory. The code can be downloaded at http://www.rss.chalmers.se/similar to kahnert/Tsym.html. (C) 2013 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2013. Vol. 123, 62-78 p.
Keyword [en]
Scattering, T-matrix, Mineral dust, Cosmic dust, Ice clouds
National Category
Meteorology and Atmospheric Sciences
Research subject
Environment
Identifiers
URN: urn:nbn:se:smhi:diva-368DOI: 10.1016/j.jqsrt.2012.12.019ISI: 000319095300009OAI: oai:DiVA.org:smhi-368DiVA: diva2:801797
Available from: 2015-04-10 Created: 2015-03-31 Last updated: 2015-04-10Bibliographically approved

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