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- W4286648529 abstract "The MagNIF team at LLNL is developing a pulsed power platform to enable magnetized inertial confinement fusion and high energy density experiments at the National Ignition Facility. A pulsed solenoidal driver capable of premagnetizing fusion fuel to ~40T is predicted to increase performance of indirect drive implosions. We have written a specialized Python code suite to support the delivery of a practical design optimized for target magnetization and risk mitigation. The code simulates pulsed power in parameterized system designs and converges to high-performance candidates compliant with evolving engineering constraints, such as scale, mass, diagnostic access, mechanical displacement, thermal energy deposition, facility standards, and component-specific failure modes. The physics resolution and associated computational costs of our code are intermediate between those of 0D circuit codes and 3D magnetohydrodynamic codes, to be predictive and support fast, parallel simulations in parameter space. Development of a reduced-order, physics-based target model is driven by high-resolution simulations in ALE3D (an institutional multiphysics code) and multi-diagnostic data from a commissioned pulser platform. Results indicate system performance is sensitive to transient target response, which should include magnetohydrodynamic expansion, resistive heating, nonlinear magnetic diffusion, and phase change. Design optimization results for a conceptual NIF platform are reported." @default.
- W4286648529 created "2022-07-23" @default.
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- W4286648529 date "2022-05-22" @default.
- W4286648529 modified "2023-09-26" @default.
- W4286648529 title "A Pulsed Power Design Optimization Code for Magnetized Inertial Confinement Fusion Experiments at the National Ignition Facility" @default.
- W4286648529 doi "https://doi.org/10.1109/icops45751.2022.9813020" @default.
- W4286648529 hasPublicationYear "2022" @default.
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