Investigations on parasitic oscillations in megawatt gyrotrons - Kern, S.; Schlaich, A.; Flamm, J.; Gantenbein, G.; Latsas, G.; Rzesnicki, T.; Samartsev, A.; Thumm, M.; Tigelis, I (34th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2009, 2009)