Effect of magnetic boundary on edge plasma profiles studied using probe measurements in EXTRAP T2R

Abstract: In this Master’s thesis project, several experiments are conducted under three different conditions in order to study their effect on the edge plasma profiles. In the first case, the standard case, there is no external interference and the plasma is studied under normal lab environments. In the second case, the plasma position inside the EXTRAP T2R device is changed by a few millimeters and in the third case a magnetic boundary is inserted into the experiment. For each set of the experiment, profiles of the plasma properties are studied and compared to each other. The method used in this experiment to study the plasma behavior is probe diagnostics which proves to be a very powerful tool.