Effect of magnetic field on the laterally colliding plasma plumes

An experimental investigation of laser produced colliding plasma of aluminium target in the presence of external varying magnetic field is done under vacuum condition. Characteristic parameters and line emission of plasma plume in the presence of magnetic field are compared with those for field free case. Axial expansion of the plasma is slowed down in the presence of magnetic field as compared to the field free case. Contrary to the field free case no sharp interaction zone is observed. Higher electron temperature and increased ionic line emission from singly as well as doubly ionized aluminium can be attributed to the Joule heating phenomenon.