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H.-J. Hartfuß

Researcher at Max Planck Society

Publications -  33
Citations -  636

H.-J. Hartfuß is an academic researcher from Max Planck Society. The author has contributed to research in topics: Stellarator & Electron temperature. The author has an hindex of 12, co-authored 33 publications receiving 589 citations.

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Major results from the first plasma campaign of the Wendelstein 7-X stellarator

R. C. Wolf, +457 more
- 27 Jul 2017 - 
TL;DR: The Wendelstein 7-X (W7-X) as mentioned in this paper is a state-of-the-art ECRH-based system for plasma start-up and operation using electron cyclotron resonance heating (ECRH).
Journal ArticleDOI

Technical challenges in the construction of the steady-state stellarator Wendelstein 7-X

Hans-Stephan Bosch, +318 more
- 13 Nov 2013 - 
TL;DR: The Wendelstein 7-X superconducting device is currently under construction in Greifswald, Germany as mentioned in this paper, where the electron cyclotron resonance heating system, diagnostics, experiment control and data acquisition are prepared for steady-state operation lasting 30 min.
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Overview of diagnostic performance and results for the first operation phase in Wendelstein 7-X (invited)

M. Krychowiak, +102 more
TL;DR: The main plasma parameters achieved in OP1.1 exceeded predicted values in discharges of a length reaching 6 s, and many of the diagnostics are already designed for quasi-steady state operation of 30 min discharges heated at 10 MW of ECRH.
Journal ArticleDOI

Confinement in W7-AS and the role of radial electric field and magnetic shear

TL;DR: In this article, an improved neoclassical electron confinement in the center of low-density ECRH plasmas has been observed in the presence of a strong positive radial electric field, which resembles the electron root solution of the neoclassically ambipolarity condition but is obviously driven by the loss of ECR h-generated suprathermal electrons.