W
W As Team
Researcher at Max Planck Society
Publications - 94
Citations - 2224
W As Team is an academic researcher from Max Planck Society. The author has contributed to research in topics: Stellarator & Plasma. The author has an hindex of 27, co-authored 94 publications receiving 2127 citations. Previous affiliations of W As Team include University of Wisconsin System.
Papers
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Journal ArticleDOI
Major results from the stellarator Wendelstein 7-AS (Review Article)
M. Hirsch,J. Baldzuhn,C. D. Beidler,R. Brakel,R. Burhenn,Andreas Dinklage,H. Ehmler,M. Endler,V. Erckmann,Y. Feng,J. Geiger,L. Giannone,G. Grieger,P. Grigull,H. J. Hartfuss,D. A. Hartmann,R. Jaenicke,R. König,H. P. Laqua,H. Maassberg,K. McCormick,F. Sardei,E. Speth,Ulrich Stroth,Friedrich E. Wagner,A. Weller,A. Werner,S. Zoletnik,W As Team +28 more
TL;DR: Wendelstein 7-AS was the first modular stellarator device to test some basic elements of stellarator optimization: a reduced Shafranov shift and improved stability properties resulted in β-values up to 3.4% as discussed by the authors.
Journal ArticleDOI
Survey of Magnetohydrodynamic Instabilities in the Advanced Stellarator Wendelstein 7-AS
A. Weller,M. Anton,J. Geiger,M. Hirsch,R. Jaenicke,A. Werner,C. Nührenberg,E. Sallander,Donald A. Spong,W As Team +9 more
TL;DR: In this paper, the Wendelstein 7-AS stellarator has been characterized experimentally in various plasma parameter regimes and heating scenarios and the observations are compared with theoretical predictions for particular cases.
Journal ArticleDOI
The neoclassical “Electron Root” feature in the Wendelstein-7-AS stellarator
H. Maaßberg,C. D. Beidler,U. Gasparino,Massimiliano Romé,W As Team,K. S. Dyabilin,Nikolai B. Marushchenko,S. Murakami +7 more
TL;DR: Grieger et al. as mentioned in this paper showed that the electron root at W7-AS is driven by ripple-trapped suprathermal electrons generated by the cyclotron resonance heated (ECRH) discharges with highly localized central power deposition.
Journal ArticleDOI
Internal transport barrier triggered by neoclassical transport in W7-AS.
Ulrich Stroth,Kimitaka Itoh,Sanae I. Itoh,H. J. Hartfuß,Heinrich P. Laqua,ECRH-Team,W As Team +6 more
TL;DR: Evidence for a second route, which opens due to the layer of a strongly varying radial electric field which is present in the transitional region from neoclassical electron to ion-root confinement, acts on turbulent transport.
Journal ArticleDOI
Fast transport changes and power degradation in the W7-AS stellarator
TL;DR: In this article, the authors investigated the turbulent heat transport in high-temperature fusion plasmas and found that the transport is governed by local plasma parameters or by a global quantity.