## Abstract (Academic Summary) This dataset and software repository investigates the dynamics of counter-directed hypervelocity acceleration of massive conducting lead pistons (Hammer and Anvil) within a 102-mm coaxial MHD cartridge. The simulation framework is based on a two-dimensional sequential implementation of the Navier-Stokes and Alfvén induction equations. To prevent premature thermal expansion of the lithium-6 deuteride (⁶LiD) fuel, a thin-walled burnable aluminum foil tube shield with a thickness of 65 μm is introduced, providing effective radiative confinement during the initial phase (up to 150 ns). Piston acceleration exceeding 20 km/s is sustained by a seed magnetic field of 150 T and the dynamic head of the cascade cones. An adaptive geometric trigger activates the external megampere-level cumulation pulse (up to 3500 T) at an inter-piston clearance threshold of 1. 0 mm. In the final stagnation phase (367. 6 ns), the gap scales down to the Van der Waals co-volume limit (0. 408 mm), prompting extreme longitudinal magnetic cumulation—the seed magnetic flux undergoes explosive compression, spiking to an on-axis peak of 9. 62 T. This magnetothermal Alfvén trapping drives the peak plasma focus temperature up to 37. 59 million Kelvin, yielding a total thermonuclear fusion energy output of 18. 602 MJ. ## Plain English Summary (Concept Overview) This project presents a 2D numerical simulation of achieving thermonuclear fusion conditions via magneto-inertial confinement. A heavy Hammer and Anvil, featuring solid LiD fuel shims mounted on their front faces, converge toward each other under the intense drive of a collapsing external magnetic field. The external magnetic flux undergoes rapid geometric compression driven by the immense pressure of an aluminum plasma sleeve, which is generated by the explosive electrical explosion of thin nested aluminum plates under megampere-level currents. The counter-induced EMF and coupled MHD transport effects acting on the projectiles accelerate them to hypervelocity metrics. To suppress premature thermal degradation and early expansion of the fusion salt driven by the intense plasma radiation flash, a thin sacrificial aluminum foil tube shield is introduced. This foil tube undergoes complete radiative burn-through well before the physical arrival of the mechanical shock wave. Sustained by their massive kinetic inertia, the Hammer and Anvil successfully pierce through the internal plasma cushion formed by the expanding fuel core following the shield's vaporization. The seed magnetic field then undergoes explosive on-axis amplification due to the extreme mechanical stagnation of the inter-piston gap, effectively trapping the target core and preventing radial plasma dissipation. As a rigorous result, the full sequence of high-energy-density parameters required for a stable thermonuclear reaction in the 6LiD fuel is established, as validated by the execution solver. The 2D finite-difference outputs are cross-verified against a classic 1D analytical mass-drive integral check. All C# simulation source codes, FreeCAD layouts, and exportable ParaView datasets are openly attached. Dataset & File Directory* `/SourceCode/2D/Program. cs` — Standalone sequential C# 2D MHD solver. * `/SourceCode /1D/Program. cs` — Sequential C# 1D MHD solver. * `/VerificationScripts` — Python 3 scripts for FreeCAD geometry maps and 1D analytical checks. * `/SimulationResults` — Raw execution logs and multi-component CSV matrices formatted for immediate rendering in ParaView (VTK/Render views). * `2DSimulationCoaxialMagnetohydrodynamicTargetCompression. pdf` / `main. tex` — Complete pre-print manuscript and AIP/RevTeX4-2 LaTeX typesetting source.
Dmitry Zimnitsky (Sat,) studied this question.