NBI power up to 16 MW were injected into both a reversed shear and a standard supershot to compare the performance. On the third dedicated day we conditioned the machine with Lithium pellets and injected up to 25 MW of power to test the stability properties of the reversed shear q-profile. Stability and transport analysis are in progress. 2 and high plasma internal inductance, li. Limiter conditioning with lithium pellet injection was used to produce plasmas of enhanced confinement.
Comprehensive analysis is underway.
An experiment was performed to investigate enhanced fusion product losses attributed to energy diffusion and pitch angle scattering by mode-converted ion Bernstein waves. The mode conversion layer was scanned across the core of the plasma by varying Bt and the He3 concentration. The fusion-product losses were found to maximize when the mode conversion layer was at the magnetic axis. Initial analysis of the lost-alpha probe measurements indicates that the enhanced losses may include particles with energies both higher and lower than the birth energy. In plasmas with T gas puffs, preliminary analysis indicates possible enhanced loss of D-T alpha particles when the mode conversion layer is moved towards the alpha cyclotron resonance layer.