Reflectometry for Wendelstein 7-X

Wendelstein 7-X and fusion

A New Dispersion Interferometer for the Stellarator Wendelstein 7-X

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 ...

Bayesian experimental design of a multichannel interferometer for Wendelstein 7-X.

Bayesian experimental design (BED) is a framework for the optimization of diagnostics basing on probability theory. In this work it is applied to the design of a multichannel interferometer at the Wendelstein 7-X stellarator experiment. BED offers the possibility to compare diverse designs quantitatively, which will be shown for beam-line designs resulting from different plasma configurations. ...

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...