Investigation of Plasma-Induced Magnetic Flux Compression on Induced Current in a Stator Coil Within Different Magnetic Field Configurations

In this experiment we investigated the effect of magnetic flux compression using different magnetic field geometries on induced current in a solenoid-shaped stator coil. A laser-produced plasma (LPP) was created to induce magnetic flux compression. In this experiment, a pulsed Nd: YAG laser with a wavelength of 532 nm was focused through a plano-convex lens and fired at a graphite target within a solenoidal stator coil in a vacuum chamber. The stator coil was placed in between two permanent block magnets and contains 22 turns of wire. The block magnets are arranged in different positions to analyze how different magnetic field configurations affect current produced during magnetic flux compression. These configurations include axial, transverse, and magnetic cusp geometries. The experiment was carried out in a pressure range of 10^-4 Torr to 250 mTorr and used a laser energy of 200 mJ. A Pearson coil was connected to an oscilloscope and was used to detect current induced in the stator coil during the LPP-induced magnetic flux compression.