EXPERIMENTAL-STUDY OF AN FEM WITH A MICROWAVE SYSTEM OF A NEW-TYPE

Operability of the wide-band reflector based on the effect of microwav e beams multiplication was tested in the ''hot'' experiment, A microwa ve system of the new type including such a reflector was used in a fre e electron maser (FEM)-oscillator with a guide magnetic field, The hig h current accelerator ''Sinus-6'' forming a 500 keV/120 A electron bea m was used as the FEM driver, The double-resonance regime, when both t he undulator and the cyclotron resonance conditions were fulfilled sim ultaneously, provided maximum output power 7 MW and electron efficienc y 12% at the designed frequency 45 GHz.