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The Wendelstein 7-X phase contrast imaging diagnostic

Authors :
Huang, Z.
Edlund, E.
Porkolab, M.
Bähner, J. P.
Böttger, L. G.
Sehren, C. V.
von Stechow, A.
Grulke, O.
Huang, Z.
Edlund, E.
Porkolab, M.
Bähner, J. P.
Böttger, L. G.
Sehren, C. V.
von Stechow, A.
Grulke, O.
Source :
Huang , Z , Edlund , E , Porkolab , M , Bähner , J P , Böttger , L G , Sehren , C V , von Stechow , A & Grulke , O 2021 , ' The Wendelstein 7-X phase contrast imaging diagnostic ' , Journal of Instrumentation , vol. 16 , no. 1 , P01014 .
Publication Year :
2021

Abstract

A phase contrast imaging (PCI) diagnostic has been developed for the Wendelstein 7-X (W7-X) stellarator. The PCI diagnostic provides a line-integrated measurement of turbulent electron density fluctuations, which is essential for understanding high performance scenarios that can lead to improved confinement at fusion-relevant temperatures and densities. The PCI system is also sensitive to coherent fluctuations, which arise from Alfvén eigenmodes or other MHD activity. This paper provides an overview of the hardware and the optical system and presents an example PCI measurement from the W7-X OP1.2b experimental campaign.

Details

Database :
OAIster
Journal :
Huang , Z , Edlund , E , Porkolab , M , Bähner , J P , Böttger , L G , Sehren , C V , von Stechow , A & Grulke , O 2021 , ' The Wendelstein 7-X phase contrast imaging diagnostic ' , Journal of Instrumentation , vol. 16 , no. 1 , P01014 .
Notes :
application/pdf, English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1372614709
Document Type :
Electronic Resource