Abstract
The lower-hybrid parametric resonant decay instability (decay into electrostatic lower-hybrid waves and backward ion-cyclotron waves) driven by a modulated electron beam is experimentally investigated.
From the measurement of the phase difference between density-and potential-fluctuation of backward ion-cyclotron waves, it is clarified that the former leads the latter concomitant with the growth of instabilities. Also, it is experimentally verified that the increase of this phase difference is followed by the anomalous increase of plasma particle flux across a magnetic field over the classical Simon diffusion.
