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UC
Davis PDG:2-D
Electron Temperature Profiles on TEXT-U
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Shown above are the 2-D electron temperature profiles at 313.5 ms (top)
and 346.9 ms (bottom) of shot 227440 on TEXT-U, obtained by sweeping the
LO frequency of the ECE imaging system. It is seen that the central region
of the electron temperature profiles is flat during MHD activity.
For further technical details,
and ECE Imaging measurements and results from TEXT-U, please examine the
following links:
2-D
temperature images
Temperature
profile evolution during sawteeth activity
Temperature
profile evolution during tearing mode activity
Cross-correlation
measurements of electron temperature fluctuations
Temperature
snakes observed during high power ECRH
The unique features of
the ECE Imaging diagnostics derive from the use of wideband, low cost monolithic
and hybrid Schottky diode mixer arrays. Follow the links below to learn
more about both the technology and the techniques employed in ECE Imaging.
Imaging
array design and fabrication
Correlation
Measurements
UC Davis has fabricated
and installed multichannel ECE Imaging systems on other fusion plasma tokamaks
across the world. Follow the links below for a description of the systems
involved, and to sample data collected with these systems.
ECE
Imaging on the RTP tokamak in the U.S.A.
ECE
Imaging on the TEXTOR tokamak in Germany
Comments to:
Bihe Deng