Speaker
Description
An innovative end-to-end system modelling and analysis tool has been developed and applied to test on simulated and real data the measurement capabilities of a generic high frequency (HF) magnetic diagnostic system. This software package can run in real-time (RT) and post-pulse, and it is applicable to both discrete and extended inductive magnetic sensors. This package can run in a multi-tokamak environment through interfacing with the EuroFusion IMAS and DEFUSE frameworks, and it is applicable to both existing (TCV, JET), and foreseen (ITER, DTT, DEMO) tokamaks.
The goals of this RT-compatible package are: (1) generate synthetic data to test the HF magnetic diagnostics and general analysis algorithms; (2) obtain estimates of the intrinsic measurement uncertainties and assess the actual vs. intended system measurement performance for correctly detecting individual components in the frequency spectrum of HF magnetic instabilities; (3) analyse HF coherent modes to provide their most important and RT-relevant observables: frequency, amplitude and mode numbers. This is essential for RT applications where, as an example, we wish to detect the onset of a magnetic island and then determine whether, and which, corrective actions must be taken to stabilize the discharge.
This tool has been applied on actual and simulated data extracted from a large database of magnetic instabilities observed in TCV and JET.
The algorithm has then been adapted to the existing ITER magnetic diagnostics, testing their measurement capabilities, specifically for RT applications. A test application is also developed for the magnetic diagnostic system currently foreseen for DEMO and DTT.
| Minioral | Yes |
|---|---|
| IEEE Member | No |
| Are you a student? | No |