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Design and fabrication of a multi-purpose soft x-ray array diagnostic system for 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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10.1063/1.4734035
/content/aip/journal/rsi/83/10/10.1063/1.4734035
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/10/10.1063/1.4734035
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic of the soft x-ray array diagnostics for KSTAR (top) and the structure of the filter wheel (bottom).

Image of FIG. 2.
FIG. 2.

Line of sight of each detector element and the position of the Ar injector on midplane.

Image of FIG. 3.
FIG. 3.

Soft x-ray signal ratio as a function of T e . Be filters of 10 μm and 50 μm are assumed.

Image of FIG. 4.
FIG. 4.

Responsivity of the 50 μm Si detector with a pair of Ross filters. The difference between the two spectra can be used as a bandpass filter.

Image of FIG. 5.
FIG. 5.

Soft x-ray signals of (a) channel 10 and (b) channel 12 during sawtooth oscillation (Shot 6306). (c) Time evolution of the soft x-ray signals from core to edge channels. Inversion radius lies on channel 11 (15 cm of radius) and the sawtooth period is 30 ms.

Image of FIG. 6.
FIG. 6.

(a) Time evolution of the signal difference (Shot 6371). (b) Ar diffusion is seen after Ar puffing at 0.5 s. Bad channels 1, 5, and 13 are attributed to malfunctioning in the pre-amplifier electronics.

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/content/aip/journal/rsi/83/10/10.1063/1.4734035
2012-07-16
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Design and fabrication of a multi-purpose soft x-ray array diagnostic system for KSTARa)
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/10/10.1063/1.4734035
10.1063/1.4734035
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