The energy spectra of charge-exchanged neutrals are observed in the TRIAM-1 tokamak by vertical scanning of the neutral energy analyzer. The “apparent” ion temperature obtained directly from the energy spectrum observed in the peripheral region is much higher than that predicted by neoclassical transport theory. The “actual” ion.temperature profile is derived numerically from the energy spectra observed at various positions taking into account the wall-reflection effect of neutrals and the impermeability of the plasma. As a result, the “actual” ion temperature profile is found to agree well with that predicted by neoclassical transport theory.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)