Hägermann, MoritzMoritzHägermannBirtel, PhilipPhilipBirtelJacob, ArneArneJacob2022-02-072022-02-072021-04-2922nd International International Vacuum Electronics Conference, IVEC 2021http://hdl.handle.net/11420/11656enTechnik1-D simulation of backward-wave and Pi-mode oscillations in helix traveling-wave tubesConference PaperOther