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Implementation of the real-time NBI code RABBIT in the discharge control system of ASDEX Upgrade

MPG-Autoren
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Rampp,  Markus
Max Planck Computing and Data Facility, Max Planck Society;

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Weiland, M., Sieglin, B., Felici, F., Gioannone, L., Koelbl, M., Kudlacek, O., et al. (submitted). Implementation of the real-time NBI code RABBIT in the discharge control system of ASDEX Upgrade.


Zitierlink: https://hdl.handle.net/21.11116/0000-0005-8E78-5
Zusammenfassung
Knowledge of the fast-ion distribution arising from neutral beam injection (NBI) is important for transport analysis and magnetic equilibrium reconstruction. For sophisticated plasma control, which will be essential for the success of future fusion devices, it is very beneficial to know this distribution function already in real-time during the discharge. For this purpose, the RABBIT code has been developed. Despite its fast calculation time ( 20 ms per time-step), it still shows good agreement with computationally much heavier codes like NUBEAM. In this contribution, we report on the first real-time application of the code. It has been implemented in the Discharge Control System (DCS) of ASDEX Upgrade as a DCS satellite. The input equilibrium is provided by the real-time Grad-Shafranov solver JANET and kinetic profiles come from the RAPTOR transport code, which reconstructs the profiles based on available real-time measurements. Future applications, such as for control of neutral beam current-drive, will be discussed and outlined.