Institute for Pulsed Power and Microwave Technology Institut Für Hochleistungsimpuls-und Mikrowellentechnik (ihm) Hgf Program: Fusion – Plasma Wall Interaction (pwi) – Efda Task Wp13-iph-a07-p1-01/kit/ps: Analysis and Computer Simulation of Disruption Mitigation Schemes of Massive Gas Injection (mgi