TJ-II:Fast camera: Difference between revisions

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[[TJ-II]] disposes of different fast camera systems for plasma imaging
[[TJ-II]] disposes of different fast camera systems for plasma imaging
<ref>[http://dx.doi.org/10.1088/0741-3335/48/12B/S44 J.A. Alonso et al, ''Impact of different confinement regimes on the two-dimensional structure of edge turbulence'', Plasma Phys. Control. Fusion '''48''' (2006) B465-B473]</ref>
<ref name="Alonso">[http://dx.doi.org/10.1088/0741-3335/48/12B/S44 J.A. Alonso et al, ''Impact of different confinement regimes on the two-dimensional structure of edge turbulence'', Plasma Phys. Control. Fusion '''48''' (2006) B465-B473]</ref>
<ref>[http://dx.doi.org/10.1016/j.jnucmat.2009.01.140 D. Carralero et al, ''Turbulence studies by fast camera imaging experiments in the TJII stellarator'', Journal of Nuclear Materials '''390-391''' (2009) 457-460]</ref>
<ref name="Carralero">[http://dx.doi.org/10.1016/j.jnucmat.2009.01.140 D. Carralero et al, ''Turbulence studies by fast camera imaging experiments in the TJII stellarator'', Journal of Nuclear Materials '''390-391''' (2009) 457-460]</ref>
<ref>[http://onlinelibrary.wiley.com/doi/10.1002/ctpp.201000039/pdf E. de la Cal et al, ''The visible intensified cameras for plasma imaging in the TJ-II stellarator'', Contrib. Plasma Phys. (2010)]</ref>.
<ref name="delaCal">[http://onlinelibrary.wiley.com/doi/10.1002/ctpp.201000039/pdf E. de la Cal et al, ''The visible intensified cameras for plasma imaging in the TJ-II stellarator'', Contrib. Plasma Phys. (2010)]</ref>.
The main system is located in [[TJ-II:Sectors|sector]] B8, [[TJ-II:Ports|port]] B8TANG, viewing tangentially the [[TJ-II:Limiter|poloidal limiter]] in sector C3.
The main system is located in [[TJ-II:Sectors|sector]] B8, [[TJ-II:Ports|port]] B8TANG, viewing tangentially the [[TJ-II:Limiter|poloidal limiter]] in sector C3.


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[[File:Ethylene_injection.jpg|300px|link=media:18152.gif|Surface interaction movie]]
[[File:Ethylene_injection.jpg|300px|link=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 hardcore (helical limiter). As the plasma transits form ECH to NBI plasmas, the interaction level diminishes and becomes predominantly centered in the limiter [2]. From the lithium emission fluctuations  information on the electron density fluctuations can be gained [3].
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 hardcore (helical limiter). As the plasma transits form ECH to NBI plasmas, the interaction level diminishes and becomes predominantly centered in the limiter. <ref name="Carralero"></ref> From the lithium emission fluctuations  information on the electron density fluctuations can be gained. <ref name="delaCal"></ref>


=== Dust ===
=== Dust ===