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research article
Fast Imaging of Blob Motion in TORPEX Plasmas
Iraji, Davoud
•
Furno, Ivo
•
Fasoli, Ambrogio
To complement electrostatic probe measurements of plasma turbulence and study plasma structures with high spatial resolution, a nonperturbative direct imaging system has been developed on TORPEX. This system includes a fast framing Photron-APX-RS camera and a fast gated image intensifier unit. Fast camera movies are acquired at a 150 thousand frames/s frame rate and 2 mu s of exposure time. The plasma emissivity profile is tomographically reconstructed from the tangentially viewed image. Conditional average sampling is then applied to visualize and measure the size of structures associated with interchange modes as well as blobs in TORPEX plasmas.
Type
research article
Web of Science ID
WOS:000299683400478
Authors
Iraji, Davoud
•
Furno, Ivo
•
Fasoli, Ambrogio
Publication date
2011
Published in
Volume
39
Issue
11
Start page
3010
End page
3011
Peer reviewed
REVIEWED
Available on Infoscience
May 4, 2012
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