D. López-Bruna, S. Denizeau, I. Predebon, A. La Rosa, C. Poggi, P. Agostinetti
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引用次数: 0
Abstract
SPIDER (Source for the Production of Ions of Deuterium Extracted from Rf
plasma) is a full-scale prototype of the ITER NBI source. It is based on the
concept of inductive coupling between radio-frequency current drive and plasma.
Present three-dimensional (3D) electromagnetic calculations of stationary RF
fields in SPIDER permit an evaluation of the power dissipation in its main
constituents. Taking experimental plasma parameters as input, we concentrate on
the power dissipation in the copper-made Faraday shield lateral wall (FSLW) of
the source for discharges with and without a static magnetic filter field. In
agreement with our previous results and a first comparison with calorimetry
data from the FSLW cooling circuit, the FSLW cylinder alone absorbs around 50\%
of the available power for the studied plasma parameters. A hypothesized
improvement of transport confinement may increase significantly the efficiency.
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