Magnetic fusion is one approach to generate thermonuclear fusion power in an environmental
friendly way. The Electron Cyclotron Resonance Heating is considered as the major concept for
startup heating and control of the fusion plasma. Megawatt-class gyrotrons generate the
required microwave power. This work focuses on advanced key components and technologies for a
DEMO relevant 2 MW gyrotron. One major focus is on the development of advanced Magnetron
Injection Guns. Another focus is on the red.
