Quenching of the nonlocal electron heat transport by large external magnetic fields in a laser-produced plasma measured with imaging thomson scattering |
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| Authors: | Froula D H Ross J S Pollock B B Davis P James A N Divol L Edwards M J Offenberger A A Price D Town R P J Tynan G R Glenzer S H |
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| Affiliation: | L-399, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94551, USA. froula1@linl.gov |
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| Abstract: | We present a direct measurement of the quenching of nonlocal heat transport in a laser-produced plasma by applying large external magnetic fields (>10 T). The temporally resolved Thomson-scattering measurements of the electron temperature profile show that the heat front propagation transverse to a high-power laser beam is slowed resulting in extremely strong local heating. We find agreement with hydrodynamic modeling when including a magnetic field model that self-consistently evolves the fields in the plasma. |
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