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Spiral Magnetic Instabilities: Observation of a spiral magnetic instability in the Princeton MRI experiment

The azimuthal velocity in a spiral mode spontaneously excited in the MRI experiment, relative to the angle-averaged mean. Although the mean flow varies with radius, the spiral shear is steady.

CMSOUnderstanding magnetic self-organization in plasmas is crucial to unraveling puzzles in astrophysical and laboratory plasma behavior. The Center unites laboratory plasma physicists with plasma astrophysicists for this purpose.

Experimenters and theorists participate from six institutions: the University of Wisconsin-Madison, the University of Chicago, Princeton University, Princeton Plasma Physics Laboratory, Los Alamos National Labs, and Swarthmore College.