A simple model of RF heating near the lower hybrid frequency has been added to the BALDUR 1-D tokamak transport code. The code has been used to simulate lower hybrid heating in ATC and PLT. A comparison was made with ATC data, in which the code gave fair agreement. Simulations of PLT were carried out for various input RF power spectra. It was found that the RF waves effectively heated the plasma ions over a certain density range (2.5–3.5 × 1013 cm−3 for proposed experimental parameters), yielding considerably less heating at higher and lower densities. The code predicted a rise in the volume-averaged ion temperature of about 1.8 eV per kilowatt of RF input power in the optimum density range.
Non-linear simulations of neoclassical tearing mode control by externally driven RF current and heating, with application to ITER