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TJ-II:Fast camera: Difference between revisions
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[[TJ-II]] disposes of various fast camera systems for plasma imaging | [[TJ-II]] disposes of various fast camera systems for plasma imaging, a detailed description can be found elsewhere. | ||
<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>. | |||
Different topics have been studied such as '''Turbulence''' | |||
<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 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 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 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 name=" | <ref name="delaCal2">[http://iopscience.iop.org/0741-3335/56/10/105003/ E. de la Cal et al, ''Double imaging with an intensified visible fast camera to visualize the fine structure of turbulent coherent plasma structures (blobs) in TJ-II'', 2014 Plasma Phys. Control. Fusion 56 105003)]</ref>, '''Dust''' | ||
<ref name="delaCal3">[http://iopscience.iop.org/0741-3335/55/6/065001/ E. de la Cal et al, ''Dust observation with a visible fast camera in the TJ-II stellarator'', 2013 Plasma Phys. Control. Fusion 55 065001 )]</ref>, or '''Spectroscopic 2-Dimensional Te and ne imaging''', | |||
<ref name="delaCal4">[http://iopscience.iop.org/0741-3335/53/8/085006/ E. de la Cal et al, ''Two-dimensional imaging of edge plasma electron density and temperature by the passive helium emission ratio technique in TJ-II'', 2011 Plasma Phys. Control. Fusion 53 085006 )]</ref> | |||
The main system is located in [[TJ-II:Sectors|sector]] B8, [[TJ-II:Ports|port]] B8TANG, viewing the [[TJ-II:Limiter|poloidal limiter]] in sector C3 tangentially. | The main system is located in [[TJ-II:Sectors|sector]] B8, [[TJ-II:Ports|port]] B8TANG, viewing the [[TJ-II:Limiter|poloidal limiter]] in sector C3 tangentially. | ||
The TJ-II Visible Camera Team has installed in collaboration with NIFS (Japan) a Fast Camera in '''LHD Stellarator''' | |||
<ref name="Shoji">[http://www.nifs.ac.jp/report/annrep10/pdf/021.pdf M. Shoji et al et al, ''Tangentially Viewing Fast Camera Measurements in | |||
Core Density Collapse in LHD Stellarator'', Annual Report of National Institute for Fusion Science 2010 )]</ref>. | |||
In the framework of EUROFUSION program, the group has leaded the installation and operation of a visible Fast Camera system | |||
in '''JET Tokamak''' (UK) and is named KL8 Wide Angle Visible Fast Camera. | |||
The latest upgrade and experiments with the ITER like Wall (ILW) are described elsewhere <ref name="delacal5">[http://ocs.ciemat.es/EPSICPP2012ABS/pdf/P5.041.pdf E. de la Cal et al et al, ''The Visible Intensified Fast Camera with wide-angle view | |||
of JET ILW experiment'', 39th EPS Conference & 16th Int. Congress on Plasma Physics P5.041 )]</ref>. | |||
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The newest | The newest Fast Camera employed at TJ-II is a [http://www.photron.com/ Photron] SA1 camera. | ||
Sampling speed (measured in frames per second, fps) and image size can be selected, but there is a trade-off: | Sampling speed (measured in frames per second, fps) and image size can be selected, but there is a trade-off: | ||
5000 fps with 1024 x 1024 pixels(full frame) and up to 200000 fps (maximum ever employed so far) with 182 x 80 pixels | |||
The dynamic range of the sensor is 8 bits, and the memory size is 8 GB. | The dynamic range of the sensor is 8 bits, and the memory size is 8 GB. | ||