Overview of recent results from the WEGA stellarator

• Autorzy: Otte M. , Laqua H. P. , Chlechowitz E. , Marsen S. , Preinhaelter J. , Stange T. , Rodatos A. , Urban J. , Zhang D.
• Konferencja: International Conference on Research and Applications of Plasmas, Plasma-2011, 12-16 September 2011, Warsaw, Poland
• Języki publikacji: EN

Abstrakty

EN

Repeated magnetic flux surface measurements confirmed the existence of closed and nested flux surfaces, but also revealed the existence of magnetic error fields. The simultaneous application of two radio frequency systems for plasma heating operating at 28 GHz and 2.45 GHz, respectively, allowed to reach otherwise non-accessible plasma regimes in WEGA due to synergetic effects. These regimes are characterized by over-dense plasmas at 0.5 T operation by means of electron Bernstein wave heating and the existence of supra-thermal electrons associated with soft X-ray and gamma-rays. The thermal electron diffusion coefficient was determined in the electron Bernstein wave heated plasma regime. Additionally, results from turbulence studies in low density plasmas in the vicinity of magnetic islands are presented.

Słowa kluczowe

EN

magnetic confinement; supra-thermal particles; electron Bernstein waves

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2012
• Tom: Vol. 57, No. 2
• Strony: 171--175
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Otte M.

autor

Laqua H. P.

autor

Chlechowitz E.

autor

Marsen S.

autor

Preinhaelter J.

autor

Stange T.

autor

Rodatos A.

autor

Urban J.

autor

Zhang D.

• Max-Planck Institute for Plasma Physics, EURATOM Association, 17491 Greifswald, Germany, Tel.: [phone], Fax: [phone],

Bibliografia

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