Ionization and toroidal dispersal of laser blow-off injected aluminium beam in the MT-1 M tokamak

摘要

Aluminium impurities were injected into the plasma of the MT-1 M tokamak. Line radiation of different aluminium ions (from A1 I to A1 VIII) were identified. Two velocities were found for the toroidal dispersal: one is of the order of 0.1 cm mu s-1for a few centimetres in the vicinity of the injection, the other is higher than 1 cm mu s-1for the whole tokamak.