Advances of Reflectometry on Tore-Supra: From Edge Density Profile to Core Density Fluctuations
| Autor: | G. Leclert, Roland Sabot, A. Truc, L. Vermare, F. Gabillet, Stéphane Heuraux, Pascale Hennequin, C. Bottereau, F. Clairet, C. Honoré, A. Sirinelli, J.-M. Chareau |
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| Rok vydání: | 2004 |
| Předmět: |
Physics
Electron density Radiation Physics::Instrumentation and Detectors business.industry Scattering Plasma Tore Supra Condensed Matter Physics symbols.namesake Optics Amplitude W band Physics::Plasma Physics symbols Electrical and Electronic Engineering Reflectometry business Instrumentation Doppler effect |
| Zdroj: | International Journal of Infrared and Millimeter Waves. 25:229-246 |
| ISSN: | 0195-9271 |
| DOI: | 10.1023/b:ijim.0000017896.97839.24 |
| Popis: | A new generation of broadband reflectometers based on solid state components has been installed on Tore-Supra. With reflectometers covering the range 50 to 155 GHz, the whole plasma can be scanned. Two X-mode reflectometers (V and W band) are dedicated to electron density profile measurements. Diagnostics are operated routinely with an automatic algorithm to reconstruct the density profile from shot to shot. A fast acquisition mode is available to study short time plasma evolution. For turbulence and transport studies, a third reflectometer operating between 105 and 155 GHz measures density fluctuations in the plasma centre. Sensitive to large scales, it can retrieve density perturbation due to MHD modes or broadband turbulence. Lastly, a Doppler reflectometer, based on back scattering, is being installed for measuring the poloidal rotation and fluctuations amplitude at higher wave numbers. |
| Databáze: | OpenAIRE |
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