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Analysis of uncertainty in equilibrium reconstruction in the EAST superconducting tokamak
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10.1063/1.4811657
/content/aip/journal/rsi/84/7/10.1063/1.4811657
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/7/10.1063/1.4811657

Figures

Image of FIG. 1.
FIG. 1.

Cross-section of the EAST tokamak; also the distribution of the magnetic diagnostics for equilibrium reconstruction: 14 PF coils (PF 1-14), active feedback coils (IC), limiter (pink lines), flux loops (blue open circle), and magnetic probes (blue open square).

Image of FIG. 2.
FIG. 2.

Block diagram of the EAST data integrator-acquisition system.

Image of FIG. 3.
FIG. 3.

The time evolution of PF currents in vacuum shots. The top and bottom plots are for discharges from a series connected and an anti-series connected pair of PF coils, respectively.

Image of FIG. 4.
FIG. 4.

Flux loop and magnetic probe uncertainties of all uncertainty sources.

Image of FIG. 5.
FIG. 5.

Modified offset of vs experimental values in vacuum shots.

Image of FIG. 6.
FIG. 6.

The random uncertainty of the magnetic probe and flux loop from vacuum shots on EAST.

Image of FIG. 7.
FIG. 7.

The cross-section of EAST equilibrium. The green, pink, orange, and black lines are the vacuum vessel, the limiter, the last close magnetic surface, and the SOL control lines, respectively, and , , , , , , and are 6 segments, 2 X-points, and 4 strike points, respectively.

Image of FIG. 8.
FIG. 8.

Position uncertainties of these 12 points from the equilibrium scan (95% confidence).

Tables

Generic image for table
Table I.

EAST magnetic diagnostics.

Generic image for table
Table II.

EAST magnetic diagnostics.

Generic image for table
Table III.

Key parameters of the reference equilibriums.

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/content/aip/journal/rsi/84/7/10.1063/1.4811657
2013-07-03
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Analysis of uncertainty in equilibrium reconstruction in the EAST superconducting tokamak
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/7/10.1063/1.4811657
10.1063/1.4811657
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