After completing the main construction phase of Wendelstein 7-X (W7-X) and successfully
commissioning the device, first plasma operation started at the end of 2015. Integral …

The two leading concepts for confining high-temperature fusion plasmas are the tokamak
and the stellarator. Tokamaks are rotationally symmetric and use a large plasma current to …

Wendelstein 7-X is the first comprehensively optimized stellarator aiming at good
confinement with plasma parameters relevant to a future stellarator power plant. Plasma …

Wendelstein 7-X is a highly optimized stellarator that went into operation in 2015. With a 30
cubic meter volume, a superconducting coil system operating at 2.5 T, and steady-state …

Stellarator magnetic configurations need to be optimized in order to meet all the required
properties of a fusion reactor. In this work, it is shown that a flat-mirror quasi-isodynamic (QI) …

Abstract The Wendelstein 7-X (W7-X) optimized stellarator fusion experiment, which went
into operation in 2015, has been operating since 2017 with an un-cooled modular graphite …

The magnetic diagnostic system at the Wendelstein 7-X stellarator includes three
diamagnetic loops to measure magnetic flux changes in the plasma. Their signals are …

The main objective of the Wendelstein 7-X (W7-X) stellarator is to demonstrate the
integrated reactor potential of the optimized stellarator line. An important element of this …

Wendelstein 7-X, a superconducting optimized stellarator built in Greifswald/Germany,
started its first plasmas with the last closed flux surface (LCFS) defined by 5 uncooled …

Abstract The Chinese First Quasi-axisymmetric Stellarator (CFQS) will be the first
operational quasi-axially symmetric stellarator in the world. The physical and engineering …