Weiland, M.Bilato, R.Sieglin, B.Felici, F.Giannone, L.Kudlacek, O.Rampp, M.Scheffer, M.Treutterer, W.Zehetbauer, T.2023-05-222023-05-222023-05-222023-06-0110.1088/1741-4326/acc31chttps://infoscience.epfl.ch/handle/20.500.14299/197745WOS:000972076500001For the first time, a real-time capable NBI code, which has a comparable fidelity to the much more computationally expensive Monte Carlo codes such as NUBEAM, has been coupled to the discharge control system of a tokamak. This implementation has been done at ASDEX Upgrade and is presented in this paper. Modifications to the numerical scheme of RABBIT for the time-dependent solution of the Fokker-Planck equation have been carried out to make it compatible with the non-equidistant time-steps, as they occur in real-time simulations. We demonstrate that this allows RABBIT to run in real-time both in a steady-state and time-dependent fashion and show and discuss an actual real-time simulation. Its accuracy is identified by comparing to offline RABBIT and TRANSP-NUBEAM runs (where more diagnostics are available for preciser inputs).Physics, Fluids & PlasmasPhysicstokamakplasma controlfokker-plancknumerical noisenon-constant time-stepsfast ionsenergetic particlesmagnetic equilibrium reconstructiontext::journal::journal article::research article