W Förster
University of Stuttgart
7 Papers
50 Citations
W Förster is an academic researcher from University of Stuttgart. The author has contributed to research in topics: Gyrotron & Tokamak. The author has an hindex of 5, co-authored 7 publications.
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Papers
ECRH and ECCD with high power gyrotrons at the stellarators W7-AS and W7-X
V. Erckmann,G. Dammertz,D. Dorst,L. Empacher,W Förster,G. Gantenbein,T. Geist,W. Kasparek,H. P. Laqua,G. A. Müller,Manfred Thumm,M. Weissgerber,H. Wobig +12 more
TL;DR: In this paper, the authors describe the design of the 10 MW, CW ECRH system for the superconducting next step stellarator W7-X, which will become operational in 2005.
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Experience with the ECRH System of ASDEX Upgrade
F. Leuterer,M. Beckmann,H. Brinkschulte,F. Monaco,M. Münich,F. Ryter,H. Schütz,L. Empacher,G. Gantenbein,W Förster,W. Kasparek,P. G. Schüller,K. Schworer,A Borchegowski,A. Fix,V Illin,L.G. Popov,V. Sigalaev,E.M. Tai +18 more
TL;DR: The 140 GHz ASDEX-Upgrade ECRH system as discussed by the authors uses four gyrotrons to generate a total power of 2 MW in a Gaussian beam for 2 s. External magnetic perturbations, originating from the poloidal stray magnetic field of the tokamak air core transformer and also from the cryomagnet of the adjacent gyrotron, influence the startup of the oscillation and the electron beam deposition in the collector.
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1 MW, 140 GHz, CW gyrotron for Wendelstein 7-X
G. Dammertz,Stefano Alberti,Andreas Arnold,Edith Borie,V. Erckmann,W Förster,G. Gantenbein,P. Garin,E. Giguet,Stefan Illy,W. Kasparek,H. P. Laqua,G. Le Cloarec,Y. Le Goff,W. Leonhardt,R. Magne,G. Michel,G. A. Müller,B. Ploscyzk,Martin Schmid,Manfred Thumm,Minh Quang Tran +21 more
- 12 Sep 2000
TL;DR: In this article, a 1 MW, 140 GHz gyrotron oscillator was designed and constructed as a joint collaboration between FZK Karlsruhe, CRPP Lausanne, IPF Stuttgart, CEA Cadarache and TTE Velizy for the 10 MW ECRH system of the new stellarator plasma physics experiment, Wendelstein 7-X, at IPP Greifswald, Germany.
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The ECRH system of ASDEX Upgrade
F. Leuterer,M. Beckmann,A Borchegowski,H. Brinkschulte,A. V. Chirkov,Gregory G. Denisov,L. Empacher,W Förster,G. Gantenbein,V Illin,W. Kasparek,K Kirov,F. Monaco,M. Münich,L. G. Popov,F. Ryter,P.G. Schuller,K. Schwörer,H. Schütz +18 more
- 01 Oct 2001
TL;DR: The ECRH system of ASDEX upgrade is now completed as discussed by the authors, and four gyrotrons generate a total Gaussian beam power of 2 MW/2 s at 140 GHz.
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Stabilization and modulation of the output power of submillimeter wave gyrotron
TL;DR: In this article, the output power of the gyrotron FU IV was stabilised by stabilizing the cathode potential of the anode potential and amplitude modulation of the output.
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