Speaker
Description
The largest modular stellarator Wendelstein 7-X (W7-X) has successfully passed first phase of operation in Greifswald, Germany. The sophisticated W7-X superconducting magnet system with its non-linear support system has been carefully monitored using an extensive set of mechanical and temperature sensors. The paper focuses on detail consideration of cyclic magnet system behavior during operation with limiter configurations of plasma. Measurement results are carefully compared with predictions from updated numerical models and critical issues are highlighted. As a result, the structural monitoring tool is extended to follow enhanced requirements and expectations.
The work is a preparation for upcoming more demanding phases with longer plasma pulses to guarantee safe and reliable W7-X operation with different divertor and scraper element configurations. The procedure to establish required sensor configurations, to analyze and to release new plasma regimes being compatible with W7-X component design values is also described.
| Eligible for student paper award? | No |
|---|
