Vessel eddy current measurement for the National Spherical Torus Experiment

Journal Article · Wed Dec 01 00:00:00 EST 2004 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1813091· OSTI ID:20644031

Gates, D A; Menard, J E; Marsala, R J ^[1]

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1. Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543 (United States)

A simple analog circuit that measures the National Spherical Torus Experiment (NSTX) axisymmetric eddy current distribution has been designed and constructed. It is based on simple circuit model of the NSTX vacuum vessel that was calibrated using a special axisymmetric eddy current code which was written so that accuracy was maintained in the vicinity of the current filaments [J. Menard, J. Fusion Tech. (to be published)]. The measurement and the model have been benchmarked against data from numerous vacuum shots and they are in excellent agreement. This is an important measurement that helps give more accurate equilibrium reconstructions.

• OSTI ID: 20644031
• Journal Information: Review of Scientific Instruments, Vol. 75, Issue 12; Other Information: DOI: 10.1063/1.1813091; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS
ACCURACY
AXIAL SYMMETRY
EDDY CURRENTS
EQUILIBRIUM
NSTX DEVICE
PLASMA
PLASMA CONFINEMENT
PLASMA DIAGNOSTICS
THERMONUCLEAR REACTORS