Collector system of a gyrotron with magnetically shielded solenoid M.V. Morozkin, M.Yu. Glyavin, V.N. Manuilov, I.V. Zotova and M.D. Proyavin EPJ Web Conf., 149 (2017) 04043 Published online: 04 August 2017 DOI: 10.1051/epjconf/201714904043