Diagnostic set-up and modelling for investigation of synergy between 3D edge physics and plasma-wall interactions on Wendelstein 7-X

A group of edge diagnostics and modelling has been developed for investigation of synergy between 3D edge physics and plasma-wall interactions on Wendelstein 7-X (W7-X). Two endoscopes have been designed for visible and ultraviolet spectroscopy and tomography of the plasma edge, along with infrared...

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Bibliographic Details
Published in:Nuclear fusion 2017-05, Vol.57 (6), p.66049
Main Authors: Liang, Y., Neubauer, O., König, R., Krychowiak, M., Schweer, B., Denner, P., Rack, M., Reiter, D., Feng, Y., Krämer-Flecken, A., Drews, P., Hasenbeck, F., Liu, S., Gao, Y., Wang, E.H., Wei, Y., Dostal, M., Li, L., Wang, N., Geiger, J., Suzuki, Y., Sereda, S., Börner, P., Weger, A.C., Biel, W., Brezinsek, S., Charl, A., Czymek, G., Höschen, D., Effenberg, F., Grulke, O., Nicolai, D., Lambertz, H.T., Marchuk, O., Schmitz, O., Hollfeld, K.P., Knaup, M., Offermanns, G., Satheeswaran, G., Terra, A., Thomas, J., Pederson, T. S., Samm, U., Linsmeier, C.
Format: Article
Language:English
Subjects:
3D edge physics
Astrophysics
diagnostic
Physics
stellarator
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Summary:A group of edge diagnostics and modelling has been developed for investigation of synergy between 3D edge physics and plasma-wall interactions on Wendelstein 7-X (W7-X). Two endoscopes have been designed for visible and ultraviolet spectroscopy and tomography of the plasma edge, along with infrared thermography of the divertor tiles. 2D profiles of impurities (e.g. helium, carbon) will be measured by two endoscopes viewing the island divertor region in the plasma edge with a spatial resolution of  
ISSN:0029-5515
1741-4326
DOI:10.1088/1741-4326/aa6cde