15 MW, 40%, 30 GHz, 0.5 μs gyroklystron

The IAP team has been working on creation of the pulsed gyroklystron operated in the millimeter wavelength range for several recent years. Unlike its predecessors working at symmetrical TE₀₁ and TE₀₂ modes, the klystron works at a sequence of high-order TE52 - TE₅₃ modes [1]. This allows raising the output power significantly by increasing the transverse cross section of the interaction space, while preventing the system from self-excitation and microwave breakdowns, as well as simplifying the system, which forms a helical electron beam with the required intensity and low spread of electrons over transverse velocities and a high pitch factor.