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TJ-II:Fast camera: Difference between revisions
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[[File:Polvo1b.jpg|300px|link=media:Polvo1b.gif|Dust movie]] | [[File:Polvo1b.jpg|300px|link=media:Polvo1b.gif|Dust movie]] | ||
=== The Visible Intensified Fast Camera with Wide-angle view of JET ILW experiment<ref name="delaCal5"> </ref>=== | |||
[[File:25623wComm_Photo000001.jpg|700px|link=http://www-fusion.ciemat.es/camaras/25623wComm.avi|Limiter recycling movie]] | |||
An intensified visible camera looks tangentially at a poloidal limiter where helium recycles, acting as a wide neutral source, and the atomic line emission due to plasma excitation becomes strongly localized there. It includes a bifurcated coherent bundle, each end with a different interference filter to select helium atomic lines, so that two simultaneous filtered images are captured in one single frame. The object of the proposed technique is to apply the well-known helium-beam line-ratio technique to obtain from selected filtered images the two-dimensional (2D) edge plasma n<sub>e</sub> and T<sub>e</sub>. | |||