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Issue No. 06 - November/December (2010 vol. 16)
ISSN: 1077-2626
pp: 1431-1440
Allen Sanderson , SCI Institute, University of Utah
Guoning Chen , SCI Institute, University of Utah
Xavier Tricoche , Purdue University
David Pugmire , Oak Ridge National Laboratory
Scott Kruger , Tech-X Corporation
Joshua Breslau , Princeton Plasma Physics Laboratory
In the development of magnetic confinement fusion which will potentially be a future source for low cost power, physicists must be able to analyze the magnetic field that confines the burning plasma. While the magnetic field can be described as a vector field, traditional techniques for analyzing the field's topology cannot be used because of its Hamiltonian nature. In this paper we describe a technique developed as a collaboration between physicists and computer scientists that determines the topology of a toroidal magnetic field using fieldlines with near minimal lengths. More specifically, we analyze the Poincaré map of the sampled fieldlines in a Poincaré section including identifying critical points and other topological features of interest to physicists. The technique has been deployed into an interactiveparallel visualization tool which physicists are using to gain new insight into simulations of magnetically confined burning plasmas.
Confined magnetic fusion, magnetic field visualization, Poincaré map, periodic magnetic fieldlines, recurrent patterns

J. Breslau, S. Kruger, A. Sanderson, D. Pugmire, G. Chen and X. Tricoche, "Analysis of Recurrent Patterns in Toroidal Magnetic Fields," in IEEE Transactions on Visualization & Computer Graphics, vol. 16, no. , pp. 1431-1440, 2010.
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