High-efficiency single-mode free-electron maser oscillator based on a bragg resonator with step of phase of corrugation
A new type of high-selective Bragg resonator having a step of corrugation inside the interaction region was used as a microwave system for a free-electron maser (FEM). Using a LINAC LIU-3000 (1 MeV/200 A/200 ns) to drive the FEM oscillator, a single-mode single-frequency operation was achieved at a frequency of 30.74 GHz with an output power of about 50 MW, which corresponded to a record efficiency of 35% for a millimeter wavelength FEM.
Ginzburg
NS
Institute of Applied Physics RAS, Nizhny Novgorod, Russia.
Kaminsky
AA
Kaminsky
AK
Peskov
NY
Sedykh
SN
Sergeev
AP
Sergeev
AS