Two-dimensional micron-step probe drive for laboratory plasma measurement.
Laboratory measurement of small-scale ( approximately 1 mm) magnetic phenomena over an extended area is a challenge requiring precise diagnostics. We present a novel two dimensional magnetic probe platform capable of directly measuring the magnetic field over a 36 cm(2) region at spatial resolutions better than 1 mm. The platform is discussed in the context of an experiment at the Large Plasma Device facility at UCLA, designed to measure the magnetic interaction between two counterpropagating laser-produced plasmas. The use of a precise, repeatable positioning platform enables the recovery of information about the interaction using cross-correlation techniques.
Collette
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Department of Physics and Astronomy, University of California, Los Angeles, 1000 Veteran Ave., Suite 15-70, California 90095, USA.
Gekelman
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