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Magnetic-Field Effects in Unstable High-Energy-Density Plasmas

Technical Report ·
DOI:https://doi.org/10.2172/2229985· OSTI ID:2229985

The influence of magnetic fields in high-energy-density (HED) systems is a widely unexplored field of research that can play an important role in magnetized inertial confinement fusion (ICF) and in astrophysical systems. Hydrodynamic instabilities are presently believed to be the dominant degradation mechanism in ICF implosions. Therefore, understanding the influence of an imposed B-field on RT growth is important for future mitigation strategies as well as fundamental physics of ICF implosions that utilize B-fields for enhanced performance. The Crab Nebula, one of the most observed objects in our universe, contains elongated spikes of material created by hydrodynamic instabilities, however these spikes do not break-up and become turbulent as they evolve late in time. One hypothesis for this behavior is that B-fields around these spikes prevent vortex generation typical in these types of systems.

Research Organization:
General Atomics, San Diego, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Contributing Organization:
Lawrence Livermore National Laboratory (LLNL)
DOE Contract Number:
SC0018993
OSTI ID:
2229985
Report Number(s):
DOE-GA-SC0018993; TRN: US2409439
Country of Publication:
United States
Language:
English

References (3)

Design of a high energy density experiment to measure the suppression of hydrodynamic instability in an applied magnetic field journal January 2022
On the study of hydrodynamic instabilities in the presence of background magnetic fields in high-energy-density plasmas journal March 2021
Deceleration-stage Rayleigh–Taylor growth in a background magnetic field studied in cylindrical and Cartesian geometries journal March 2022