Microwave imaging of magnetohydrodynamic instabilities in fusion plasma |
| |
Institution: | 1. CEA, IRFM, 13108 Saint-Paul-lez-Durance, France;2. Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea;3. Pohang University of Science and Technology, Pohang, Republic of Korea;4. ASIPP, 230031 Hefei, People''s Republic of China |
| |
Abstract: | Microwave imaging diagnostics are extremely useful for observing magnetohydrodynamic (MHD) instabilities in magnetic fusion plasmas. Two imaging diagnostics will be available on the WEST tokamak. A method was developed to reconstruct electron density maps from electron density profiles measured by ultrafast reflectometry, a technique based on FM-CW radar principle. It relies on plasma rotation to perform 2D reconstruction. An Electron Cyclotron Emission Imaging (ECEI) diagnostic will image directly the temperature fluctuations. It will be equivalent to 24 stacked vertically radiometers, each probing a spot of few centimetres. These two complementary techniques will contribute to the validation of MHD models. |
| |
Keywords: | Fusion plasma diagnostic Radiometry Reflectometry MHD Diagnostic pour les plasmas de fusion Radiométrie Réflectométrie MHD |
本文献已被 ScienceDirect 等数据库收录! |
|