High Repetition Rate Investigation of the Biermann Battery Effect in Laser Produced Plasmas Over Large Spatial Regions
POSTER
Abstract
The Biermann Battery effect is a mechanism of magnetic field generation in both astrophysical phenomena and laser produced plasmas (LPPs). We present data from a high repetition rate (HRR) experiment examining the spatial structure and evolution of such fields. Data was taken at a repetition rate of 1 Hz over large volumetric regions producing detailed data sets containing thousands of points. Measurements show azimuthally symmetric magnetic fields with peak magnitudes of up to 60 G in our closest measurements, 7 mm from the target surface. The current densities in the system were determined by taking the curl of the measured magnetic fields. We additionally present optical Thomson scattering measurements of electron temperature and density within our system.
Presenters
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Jessica J Pilgram
University of California, Los Angeles
Authors
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Jessica J Pilgram
University of California, Los Angeles
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Carmen G Constantin
UCLA, University of California, Los Angeles
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Robert S Dorst
University of California, Los Angeles
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Marissa B Adams
University of Rochester
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Petros Tzeferacos
University of Rochester
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Peter V Heuer
Laboratory for Laser Energetics, Laboratory for Laser Energetics, U. of Rochester
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Derek B Schaeffer
Princeton University, University of California, Los Angeles, Princeton University, USA
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Marietta Kaloyan
University of California, Los Angeles
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Sofiya Ghazaryan
University of California, Los Angeles
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Christoph Niemann
University of California, Los Angeles