Influence of the Aftercavity Interaction on the Output Power of a Gyrotron Operating at a High-Order Axial Mode
- Resource Type
- Conference
- Authors
- Khutoryan, Eduard; Kuleshov, Alexei; Fedotov, Alexey; Sabchevski, Svilen; Bandurkin, Ilya; Manuilov, Vladimir; Zotova, Irina; Fokin, Andrey; Kishko, Sergey; Ponomarenko, Sergey; Ishikawa, Yuya; Fukunari, Masafumi; Saito, Teruo; Tatematsu, Yoshinori; Mitsudo, Seitaro; Idehara, Toshitaka; Glyavin, Mikhail
- Source
- 2021 22nd International Vacuum Electronics Conference (IVEC) International Vacuum Electronics Conference (IVEC), 2021 22nd. :1-2 Apr, 2021
- Subject
- Communication, Networking and Broadcast Technologies
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power, Energy and Industry Applications
Electron beams
Gyrotrons
Resonant frequency
Power system harmonics
Harmonic analysis
Vacuum electronics
Magnetic fields
gyrotron
high-order axial modes
after-cavity interaction
- Language
An unexpected abrupt increase of the output power at magnetic field values corresponding to the excitation of high-order axial modes (HOAM) was observed experimentally and is explained theoretically through an after-cavity interaction of the bunched electron beam with the next radial mode. The calculations showed that under certain conditions this effect can be either useful for a power increase at the HOAM operation of the frequency-tunable gyrotron or harmful for high cyclotron harmonic operation due to an expansion of the zone of fundamental cyclotron resonance mode excitation.