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Real-time MSE measurements for current profile control on KSTARa)
a)Contributed paper, published as part of the Proceedings of the 19th Topical Conference on High-Temperature Plasma Diagnostics, Monterey, California, May 2012.
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10.1063/1.4732854
/content/aip/journal/rsi/83/10/10.1063/1.4732854
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/10/10.1063/1.4732854
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Top view schematic of the KSTAR tokamak indicating the positions of the MSE viewing range, neutral beam positions, and the main KSTAR parameters. The 3 dotted lines indicate outer edges and center of the viewing range, the total number of channels is planned to be of order 30.

Image of FIG. 2.
FIG. 2.

Retardance profile the aperture of a PEM set at half a wave retardance.

Image of FIG. 3.
FIG. 3.

MSE intensity spectrum of all 3 KSTAR beam ion sources with all energy components. In the gray area, there is overlap of the ion sources 1, 2, and 3.

Image of FIG. 4.
FIG. 4.

The effect of different filter designs (xCy stands for x cavity filter with y Å width) on the deviation of the measured γ from the ideal γ as function of the ion source 2 voltage (ion source 1 and 3 both at the maximum of 95 kV).

Image of FIG. 5.
FIG. 5.

Real and imaginary parts of the PEM harmonics in the MSE signal (blue: raw signal, red: corrected by the phase).

Image of FIG. 6.
FIG. 6.

Phase locking of the real-time algorithm compared to an off-line, post-shot analysis. The green area on the zoom-in indicates ±0.5°.

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/content/aip/journal/rsi/83/10/10.1063/1.4732854
2012-07-26
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Real-time MSE measurements for current profile control on KSTARa)
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/10/10.1063/1.4732854
10.1063/1.4732854
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