SPACE-TIME STRUCTURE OF THE MAGNETIC-FIELD OF A LASER-PLASMA AND METHODS FOR ITS ENHANCEMENT OUTSIDE THE PLASMA

A considerable enhancement (more than three orders of magnitude) of th e magnetic field outside a laser plasma under a large-scale nonuniform ity of the experimental configuration has been observed. Some fundamen tal peculiarities, which indicate the active role of the target in mag netic field generation, have been established. For example, the target topology, the ratio of its dimensions, the conductivity in contact wi th a plasma ''ionization aureole'' were found to be important factors, that can determine the structure of magnetic field of the laser plasm a.