The 1st Decade of Electron Cyclotron Heating Experiments on Wendelstein Stellarators - A (Partially) Humorous Retrospect -

Institutskolloquium

  • Datum: 09.02.2018
  • Uhrzeit: 10:30 - 12:00
  • Vortragende(r): Prof. M. Thumm (Karlsruhe Institute of Technology (KIT))
  • Ort: IPP Greifswald und Garching
  • Raum: HGW S1 (Übertragung Hörsaal D2)
  • Gastgeber: IPP
End of 1981 the Electron Cyclotron Heating (ECH) Division in the Institute for Plasma Research (IPF) of the University of Stuttgart was founded with members of the former Belt-Pinch, Theta-Pinch and “Plasmaus” (linear 2.45 GHz RF plasma device) Groups in order to develop a 28 GHz, 0.2 MW, 40 ms ECH system for plasma start-up, heating and confinement experiments on the Wendelstein W7-A Stellarator at IPP Garching. Since these experiments were very successful, later 70 GHz and 140 GHz ECH and non-inductive current drive CD systems were installed. This colloquium talk will review the first 10 years of ECH&CD experiments on Wendelstein Stellarators.

1983: 28 GHz, 0.2 MW, 40 ms ECH on W7-A (Varian gyrotron)

1984: 70 GHz, 0.2 MW, 0.1 s ECH on W7-A (Varian gyrotron)  

1988: 70 GHz, 1 MW, 3 s ECH&CD on W7-AS (5 Varian gyrotrons) 

1991: 140 GHz, 0.1 MW, 0.5 s ECH&CD on W7-AS (KfK gyrotron)  

1992: 140 GHz, 0.5 MW, 0.5 s ECH&CD on W7-AS (Gycom gyrotron).

 

This presentation also will highlight some humorous aspects experienced during this time period.

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