Parametric dependencies of anomalous ion heat conductivity in T-10 plasma with Ohmic heating

Ion heat conductivity in deuterium plasma of the circular limiter tokamak T-10 is analyzed in more than 100 Ohmic shots. Four data scans: plasma density, effective charge, plasma current, and toroidal magnetic field are presented. Each scan is formed with the preservation of other parameters. It is shown that at the plasma periphery, [Formula: see text], the ion heat conductivity exceeds neoclassical values up to three to eight times. The anomalous part [Formula: see text] increases with plasma density and effective charge, while it decreases with plasma current and does not depend on the toroidal magnetic field. The highest value of [Formula: see text] is observed in high-density low-current regimes. More negative values of plasma electric potential correlate with higher values of [Formula: see text]. The empirical scaling of [Formula: see text] is derived. The transport model based on this scaling allows us to describe experimental profiles of ion temperature [Formula: see text] within experimental error [Formula: see text].