Snowflake divertor experiments on TCV
Piras, F.; Coda, S.; Duval, B. P.; Labit, B.; Marki, J.; Medvedev, S. Yu; Moret, J.-M.; Pitzschke, A.; Sauter, O.; the TCV team
2010

Abstract

An ELMy H-mode 'snowflake' (SF) divertor is established and studied for the first time in the TCV tokamak. The H-mode access and the edge localized mode (ELM) dynamics are compared with a conventional single-null diverted configuration. The SF configuration exhibits 15% higher confinement and 2-3 times lower ELM frequency. Ideal MHD stability analysis suggests enhanced stability of the SF H-mode pedestal to mid- to high-toroidal-mode-number modes. The capability of the SF to redistribute the edge power on the additional strike points has been confirmed experimentally.

Details

Title Snowflake divertor experiments on TCV
Author(s) Piras, F. ; Coda, S. ; Duval, B. P. ; Labit, B. ; Marki, J. ; Medvedev, S. Yu ; Moret, J.-M. ; Pitzschke, A. ; Sauter, O. ; the TCV team
Published in Plasma Physics and Controlled Fusion
Volume 52
Issue 12
Pages 124010
Conference 37th European Physical Society Conference on Plasma Physics, Dublin, Ireland, June 22-25, 2010
Date 2010
Publisher Institute of Physics
ISSN 0741-3335
Keywords
DOI https://doi.org/10.1088/0741-3335/52/12/124010
Other identifier(s) View record in Web of Science
Laboratories CRPP
SPC
Record Appears in Scientific production and competences > SB - School of Basic Sciences > SPC - Swiss Plasma Center > SPC - Swiss Plasma Center
Peer-reviewed publications
Conference Papers
Work produced at EPFL
Published
Record creation date 2011-04-15

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