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2015•Journal of InstrumentationOpen access

The Set of Diagnostics for the First Operation Campaign of the Wendelstein 7-X Stellarator

R. König, J. Baldzuhn, W. Biel, C. Biedermann, H.-S. Bosch, S. Bozhenkov, T. Bräuer, B.B. Carvalho, R. Burhenn, B. Buttenschön, G. Cseh, A. Czarnecka, M. Endler, V. Erckmann, T. Estrada, J. Geiger, O. Grulke, D. Hartmann, D. Hathiramani, M. Hirsch, S. Jabłoński, M. Jakubowski, Jacek Kaczmarczyk, T. Klinger, S. Klose, G. Kocsis, P. Kornejew, A. Krämer-Flecken, T. Kremeyer, M. Krychowiak, M. Kubkowska, A. Langenberg, H. P. Laqua, M. Laux, Y. Liang, A. Lorenz, A. O. Marchuk, V. Moncada, O. Neubauer, U. Neuner, J. W. Oosterbeek, M. Otte, N. Pablant, E. Pasch, T. S. Pedersen, K. Rahbarnia, L. Ryć, O. Schmitz, W. Schneider, H. Schuhmacher, B. Schweer, T. Stange, H. Thomsen, Jean-Marcel Travère, T. Szepesi, U. Wenzel, Andreas Werner, B. Wiegel, T. Windisch, R. C. Wolf, G. A. Wurden, D. Zhang, A. Zimbal, S. Zoletnik

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Abstract

Wendelstein 7-X (W7-X) is a large optimized stellarator (B=2.5T, V=30m 3 ) aiming at demonstrating the reactor relevance of the optimized stellarators. In 2015 W7-X will begin its first operation phase (OP1.1) with five inertially cooled inboard limiters made of graphite. Assuming the heat loads can be spread out evenly between the limiters, 1 second discharges at 2 MW of ECRH heating power could be run in OP1.1. The expected plasma parameters will be sufficient to demonstrate the readiness of the installed diagnostics and even to run a first physics program. The diagnostics available for this first operation phase, including some special limiter diagnostics, and their capabilities are being presented. A shorter version of this contribution is due to be published in PoS at: 1 st EPS conference on Plasma Diagnostics

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What this paper is about

Wendelstein 7-X (W7-X) is a large optimized stellarator (B=2.5T, V=30m 3 ) aiming at demonstrating the reactor relevance of the optimized stellarators. In 2015 W7-X will begin its first operation phase (OP1.1) with five inertially cooled inboard limiters made of graphite. Assuming the heat loads can be spread out evenly between the limiters, 1 second discharges at 2 MW of ECRH heating power could be run in OP1.1. The expected plasma parameters will be sufficient to demonstrate the readiness of the installed diagnostics and even to run a first physics program. The diagnostics available for this first operation phase, including some special limiter diagnostics, and their capabilities are being presented. A shorter version of this contribution is due to be published in PoS at: 1 st EPS conference on Plasma Diagnostics

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Available abstract

Wendelstein 7-X (W7-X) is a large optimized stellarator (B=2.5T, V=30m 3 ) aiming at demonstrating the reactor relevance of the optimized stellarators. In 2015 W7-X will begin its first operation phase (OP1.1) with five inertially cooled inboard limiters made of graphite. Assuming the heat loads can be spread out evenly between the limiters, 1 second discharges at 2 MW of ECRH heating power could be run in OP1.1. The expected plasma parameters will be sufficient to demonstrate the readiness of the installed diagnostics and even to run a first physics program. The diagnostics available for this first operation phase, including some special limiter diagnostics, and their capabilities are being presented. A shorter version of this contribution is due to be published in PoS at: 1 st EPS conference on Plasma Diagnostics

Key concepts: Stellarator, Wendelstein 7-X, Limiter, Nuclear engineering, Physics, Power (physics), Plasma, Computer science

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