Abstract
Herein, a two-dimensional magnetohydrodynamic (MHD) simulation has been performed to understand the MHD and the generated magnetic field (B-field) behaviors of a capacitor-coil target. The results showed that a peak B-field strength was generated in the capacitor-coil target, followed by a current peak. This B-field depends on a peak current with a pulse duration of 2 ns. For a peak current of 2 ns, the average B-field in the capacitor-coil target is estimated by the center of the B-field from the conventional circular current. The time difference between the peak current and the generated B-field is up to 2 ns. Furthermore, the time difference of the capacitor-coil target corresponds to the inductance and resistance of the capacitor-coil target. Overall, the results suggests that a longer laser pulse will improve the strength of B-field generated by the capacitor-coil target.
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