Investigating the effects of the TF-enclosed area on the generated magnetic field via EPOCH simulations

Abstract

For plasma processes that occur in extreme environments to be replicated in the laboratory, strong magnetic fields are necessary. As such, there is a need to devise setups that can generate and amplify magnetic fields. One such scheme is Microtube Implosion (MTI) which uses relativistic laser pulses to irradiate a microtube target under a seed magnetic field and amplify the seed magnetic field to MT-order. It has been demonstrated from previous studies that seedless magnetic field generation can be achieved by using specific target geometries. In this study, we investigate the effects of varying the tetrafoil's enclosed area on the generated magnetic field. The results show that strong, localized magnetic fields of ~0.3 MT can be sustained for approximately 400 fs. Furthermore, the area enclosed by the tetrafoil influences the direction of the generated magnetic field.