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Development of high-speed and wide-angle visible observation diagnostics on Experimental Advanced Superconducting Tokamak using catadioptric optics
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10.1063/1.4817204
/content/aip/journal/rsi/84/8/10.1063/1.4817204
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/8/10.1063/1.4817204

Figures

Image of FIG. 1.
FIG. 1.

Optical design of the front mirrors is shown in the upper figure, and the aberration correction system is shown in the lower figure. When compared with the upper figure in Fig. 2 of Ref. , the greatest difference is that the mirrors (both the flat mirror and the aspheric mirror) are made from Zerodur and are coated with aluminum, while in the J-WOD, they are made from stainless steel and are coated with gold. Also, the primary mirror has a diameter of about 65 mm compared with the diameter of 120 mm required for the J-WOD mirror, which means that the optical system only has a total maximum diameter of 140 mm.

Image of FIG. 2.
FIG. 2.

The MTF (upper) and the encircled energy (lower) of the designed optical system.

Image of FIG. 3.
FIG. 3.

The designed CTF (top left) versus the measured IMD, showing the contrast at various spatial frequencies at different positions.

Image of FIG. 4.
FIG. 4.

The FOV of the optical system in EAST, as measured by the v710.

Image of FIG. 5.
FIG. 5.

Visible image of the plasma-wall interaction in HT-7 during a disruption event on shot #117750.

Tables

Generic image for table
Table I.

Technical specification data of the pco.dimax for application to the EAST high-speed camera system (Ref. ).

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/content/aip/journal/rsi/84/8/10.1063/1.4817204
2013-08-02
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Development of high-speed and wide-angle visible observation diagnostics on Experimental Advanced Superconducting Tokamak using catadioptric optics
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/8/10.1063/1.4817204
10.1063/1.4817204
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