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TJ-II:Fast camera: Difference between revisions
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=== Helium Puffing === | === Helium Puffing === | ||
[[ | [[media:24080.gif|Helium puffing movie]] | ||
Without filter and 75 mm lens. Speed: 100000 fps. Exposure time: 1<math>\mu</math>s. V: 700 V. | Without filter and 75 mm lens. Speed: 100000 fps. Exposure time: 1<math>\mu</math>s. V: 700 V. | ||
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=== Surface Interaction === | === Surface Interaction === | ||
[[ | [[media:18152.gif|Surface interaction movie]] | ||
TJ-II plasma observed from a tangential port at 17.5 kHz sampling rate, with a lithium filter and image intensifier. In the field of view, the two most prominent areas of plasma-wall interaction can be seen: the poloidal limiter (lower) and the harcore (helical limiter). As the plasma transits form ECH to NBI plasmas, the interaction level disminishes and becomes predominantly centered in the limiter. | TJ-II plasma observed from a tangential port at 17.5 kHz sampling rate, with a lithium filter and image intensifier. In the field of view, the two most prominent areas of plasma-wall interaction can be seen: the poloidal limiter (lower) and the harcore (helical limiter). As the plasma transits form ECH to NBI plasmas, the interaction level disminishes and becomes predominantly centered in the limiter. | ||
=== Dust === | === Dust === | ||
[[ | [[media:polvo1b.gif|Dust movie]] | ||
First insertion of the poloidal limiter after a lithiation of the vacuum vessel. Tangential observation, 15 kHz sampling rate. The ejection of lithium flakes from the carbon surface can be seen clearly at the beggining of the discharge. At the end of the video, as the plasma becomes colder, the flakes penetrate deeper into it until they float freely in the post-discharge plasmoid. | First insertion of the poloidal limiter after a lithiation of the vacuum vessel. Tangential observation, 15 kHz sampling rate. The ejection of lithium flakes from the carbon surface can be seen clearly at the beggining of the discharge. At the end of the video, as the plasma becomes colder, the flakes penetrate deeper into it until they float freely in the post-discharge plasmoid. | ||