Corrigendum: Gas exhaust in the Wendelstein 7-X stellarator during the first divertor operation (2022 Nucl. Fusion 62 096016)

Island divertor experiments on the Wendelstein 7-AS stellarator

A promising new operational regime on the Wendelstein stellarator W7-AS has been discovered, fulfilling the conditions of optimal core behavior in combination with edge parameters suitable for successful divertor scenarios. This regime, the high density H-mode (HDH), displays no systematically evident mode activity, and is edge localized mode (ELM)-free. It is extant above a power-dependent thr...

The Set of Diagnostics for the First Operation Campaign of the Wendelstein 7-X Stellarator

Wendelstein 7-X (W7-X) is a large optimized stellarator (B=2.5T, V=30m) aiming at demonstrating the reactor relevance of the optimized stellarators. In summer this year (2015) W7-X will begin its first operation phase (OP1.1) with five inertially cooled inboard limiters made of graphite. Assuming the heat loads can be spread out evenly between the limiters, 1 second discharges at 2 MW of heatin...

The construction of the Wendelstein 7-X stellarator

The construction status of the large superconducting stellarator Wendelstein 7-X is reported. The manufacturing and tests of the main components are reviewed and major design tasks during the device assembly phase are summarized. The assembly is currently proceeding on three out of five assembly stands. Four out of ten magnet half-modules are completed. Major work packages are the electric and ...

A New Dispersion Interferometer for the Stellarator Wendelstein 7-X

Diagnostics development for quasi-steady-state operation of the Wendelstein 7-X stellarator (invited).

The critical issues in the development of diagnostics, which need to work robust and reliable under quasi-steady state conditions for the discharge durations of 30 min and which cannot be maintained throughout the one week duration of each operation phase of the Wendelstein 7-X stellarator, are being discussed.