Overview of first Wendelstein 7-X high-performance operation
T Klinger, T Andreeva, S Bozhenkov, C Brandt… - Nuclear …, 2019 - iopscience.iop.org
The optimized superconducting stellarator device Wendelstein 7-X (with major radius, minor
radius, and plasma volume) restarted operation after the assembly of a graphite heat shield …
radius, and plasma volume) restarted operation after the assembly of a graphite heat shield …
[HTML][HTML] Charge exchange recombination spectroscopy at Wendelstein 7-X
OP Ford, L Vanó, JA Alonso, J Baldzuhn… - Review of Scientific …, 2020 - pubs.aip.org
The Charge Exchange Recombination Spectroscopy (CXRS) diagnostic has become a
routine diagnostic on almost all major high temperature fusion experimental devices. For the …
routine diagnostic on almost all major high temperature fusion experimental devices. For the …
Observation of anomalous impurity transport during low-density experiments in W7-X with laser blow-off injections of iron
The transport of heavy impurities has been investigated at the Wendelstein 7-X stellarator
during core electron root confinement (CERC) experiments. Iron atoms were injected via the …
during core electron root confinement (CERC) experiments. Iron atoms were injected via the …
Stellarator research opportunities: a report of the national stellarator coordinating committee
This document is the product of a stellarator community workshop, organized by the National
Stellarator Coordinating Committee and referred to as Stellcon, that was held in Cambridge …
Stellarator Coordinating Committee and referred to as Stellcon, that was held in Cambridge …
Metal impurity transport control in JET H-mode plasmas with central ion cyclotron radiofrequency power injection
The scan of ion cyclotron resonant heating (ICRH) power has been used to systematically
study the pump out effect of central electron heating on impurities such as Ni and Mo in H …
study the pump out effect of central electron heating on impurities such as Ni and Mo in H …
Turbulence-reduced high-performance scenarios in Wendelstein 7-X
OP Ford, M Beurskens, SA Bozhenkov… - Nuclear …, 2024 - iopscience.iop.org
Abstract In the Wendelstein 7-X (W7-X) stellarator, turbulence is the dominant transport
mechanism in most discharges. This leads to a'clam**'of ion temperature over a wide …
mechanism in most discharges. This leads to a'clam**'of ion temperature over a wide …
Turbulent impurity transport simulations in Wendelstein 7-X plasmas
A study of turbulent impurity transport by means of quasilinear and nonlinear gyrokinetic
simulations is presented for Wendelstein 7-X (W7-X). The calculations have been carried out …
simulations is presented for Wendelstein 7-X (W7-X). The calculations have been carried out …
[HTML][HTML] Charge-state independent anomalous transport for a wide range of different impurity species observed at Wendelstein 7-X
In this paper, the plasma volume averaged impurity confinement of selected charge states
and impurity species has been characterized for the Stellarator Wendelstein 7-X (W7-X) …
and impurity species has been characterized for the Stellarator Wendelstein 7-X (W7-X) …
Design, capabilities, and first results of the new laser blow-off system on Wendelstein 7-X
We present a detailed overview and first results of the new laser blow-off system on the
stellarator Wendelstein 7-X. The system allows impurity transport studies by the repetitive …
stellarator Wendelstein 7-X. The system allows impurity transport studies by the repetitive …
Flux-surface variations of the electrostatic potential in stellarators: impact on the radial electric field and neoclassical impurity transport
Flux-surface variations of the electrostatic potential are typically neglected in standard
neoclassical theory, but in 3D devices they can be large enough to affect the radial particle …
neoclassical theory, but in 3D devices they can be large enough to affect the radial particle …