Stimulated Cherenko radiation of plasma waves and plasma turbulence

Stimulated Cherenkov Radiation of plasma waves represents a type of radiative instability of the plasma-beam system and current driven plasma. If the system is near the threshold of instability then the coherent practically monochromatic plasma waves are created, whereas when the system is significantly above the threshold then the wide-band and chaotic radiation is excited. Bellow the results of theoretical, numerical and experimental investigations of stimulated Cherenkov radiation of the dense electron streams in a bounded magnetized plasma carried on in GPI are presented. It will be considered two examples: stimulated radiation of microwaves by Relativistic Electron Beams (REB) in a bounded plasma and stimulated radiation of ion-sound waves in a current driven plasma. (orig.)