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Beam-wave dynamics in two-beam accelerator driver with accompanying wave is studied with numerical simulations. Special attention is paid to the problems of phase stability and tolerances for microwave extraction facilities. В численном моделировании исследуется динамика взаимодействия электронного пучка и волны в драйвере двухпучкового ускорителя с сопровождающей электромагнитной волной. Особое внимание уделено вопросам фазовой стабильности и допусков для систем вывода мощности. У чисельному моделюванні досліджується динаміка взаємодії електронного пучка і хвилі в драйвері двопучкового прискорювача з супровідною електромагнітною хвилею. Особлива увага приділена питанням фазової стабільності і допусків для систем виводу потужності.

A FEM-oscillator with a reversed guide magnetic field and a Bragg resonator as a RF radiation source for collider applications was studied. The configuration with a step of the corrugation phase is proved to be advantageous. It possesses such features as a high efficiency, precise tunability of the operating frequency and a narrow spectral band. It is demonstrated experimentally that such an oscillator is capable of operating at frequencies of ~30 GHz in single-mode regime with the frequency tuning in interval up to 6%. Frequency and spectrum measurements have been performed with precision of ~0.1%.

Results of theoretical and experimental studies of the microwave radiation sources on the base of the induction linac LIU-3000 (JINR, Dubna) are presented. In particular, a FEM-oscillator with the reversed guide magnetic field and Bragg resonator as well as an electron beam buncher in the two-beam accelerator (TBA) driver was studied.