| 摘要 |
<p>To eliminate the need for high-speed capacitor bank, a plasma focus device stores energy in a magnetohydrodynamic vortex ring (10). To suddenly release the stored energy, the magnetic field vector (Be) on the outer surface of the ring (10) is rotated, and the external magnetic field (Be) is increased to compress the ring until it becomes unstable and collapses due to magnetic field-line reconnection (Fig. 5). Therefore most of the energy in the internal magnetic field (Bo) of the vortex ring (10) is converted to kinetic energy or heat on an Alfven time scale. The result is a smaller high-density, high-temperature force-free vortex ring (10).</p> |
