Engineering aspects and basic parameters of the IR-T1 tokamak

Summary form only given. The IR-T1 tokamak is an air core transfer type, with no divertor and conductive shell on it. This tokamak was established to concentrate mainly on plasma confinement, MHD behavior and control of instabilities. Fundamental diagnostic systems such as ECE, visible spectrometer, soft X-ray, and electromagnetic measurement system are used. The magnetic measurement system which include; 10 Rogowsky coils, 8 loop lines, 2 sine saddle coils, 2 cos coils, 2 circuit units, 1 diamagnetic flux coil, 1 concentric coil, and 1 circuit unit, are used to measure the plasma current, loop voltage, horizontal and vertical displacement, and diamagnetism respectively. To measure the magnetic fluctuation of plasma column and to investigate the different aspects of MHD modes and high frequency fluctuations, two sets of Mirnov coils and d=2/n-1 and /spl Lscr/=3/n-1 helical magnetic windings have been installed.