Abstract
Edge Localised Modes (ELMs) in the JET tokamak have been studied experimentally, using density profile and fluctuation data from a multichannel reflectometer and temperature profile data from an ECE heterodyne radiometer. The following topics have been investigated
• The radial extent and localisation of the density and temperature profile perturbations caused by the ELMs.
• Fluctuations in the density and magnetic field in connection with the ELMs.
• The correlation between the repetition frequency of the L-H transition ELMs, and the plasma edge temperature and density.
• Trajectories in n-T space prior to ELMs later in the H-mode.
• The radial extent and localisation of the density and temperature profile perturbations caused by the ELMs.
• Fluctuations in the density and magnetic field in connection with the ELMs.
• The correlation between the repetition frequency of the L-H transition ELMs, and the plasma edge temperature and density.
• Trajectories in n-T space prior to ELMs later in the H-mode.
| Original language | English |
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| Place of Publication | Roskilde |
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| Publisher | Risø National Laboratory |
| Number of pages | 162 |
| ISBN (Print) | 87-550-1913-7 |
| Publication status | Published - 1993 |