Journal Article

FZJ-2017-06363

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Poloidal correlation reflectometry at W7-X: radial electric field and coherent fluctuations

Windisch, T. (Corresponding author) ; Krämer-Flecken, A.FZJ* ; Velasco, J. ; Könies, A. ; Nührenberg, C. ; Grulke, O. ; Klinger, T.

2017
IOP Publ. Bristol

This record in other databases:    

Please use a persistent id in citations: doi:10.1088/1361-6587/aa759b

Abstract: Poloidal correlation reflectometry measurements during the first plasma campaign of the optimized stellarator Wendelstein-7X are presented. The radial electric field is determined and a comparison with neoclassical calculations and shows good qualitative agreement. The measured density fluctuation spectrum exhibits coherent low- and high-frequency modes. Magneto-hydrodynamic (MHD) modeling results suggest that the coherent fluctuations are caused by stable MHD-modes and Alfvén waves.

---

Contributing Institute(s):

1. Plasmaphysik (IEK-4)

Research Program(s):

1. 174 - Plasma-Wall-Interaction (POF3-174) (POF3-174)

Appears in the scientific report 2017

---

Database coverage:
Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

---