Second International Conference on Advances in Applied Science and Environmental Technology - ASET 2015
Author(s) : M. GHORANNEVISS, M. LAFOUTI
In this paper the effect of magnitude of ohmic magnetic field ( ohmic B ) on plasma current, plasma resistance ( P R ), plasma confinement time ( E ) and energy of plasma (U ) in IRT1 tokamak have been investigated. For this purpose the experiment have been done in three steps. In each experiment, all factors have been fixed, and only the ohmic magnetic field was changed. For this purpose the diamagnetic signal was measured by diamagnetic loop. The MHD oscillation was detected by mirnov coils in which mount around the tokamak. To analysis the MHD oscillation, the fast Fourier transform (FFT) was applied to the mirnov coils signal. The results show that by increasing the amount of ohmic B , the magnitude of P , E , U increase too. If the magnitude of ohmic B is selected correctly then the E and U energy can be reached to their maximum amplitude .it means that, the plasma confinement can be increased with the correct set of initial condition.