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Role of Wall in the Low Frequency Mhd Activity Evolution in the Tuman-3 M Tokamak
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lebedev, Sergey V. Askinazi, L. G. Vildjunas, M. I. Golant, Victor Gryaznevich, M. P. Zhubr, N. A. Kornev, Vyacheslav A. Krikunov, S. V. Rozhdestvensky, V. V. Shevkin, E. A. Tukachinsky, Alexander |
| Abstract | MHD activity with strong frequency variation was observed under certain experimental conditions in the ohmically heated TUMAN-3M tokamak (R0=0.53 m, al=0.22 m, Bt=0.8 T, Ip=140 kA, nav=(1-5) 10 19 m, Te(0)=0.4-0.6 keV, Ti(0)=0.1-0.2 keV). As a rule, the MHD oscillations appear in the end of current ramp phase, see Fig.1. Density ramp up at this stage leads to the strong increase in the MHD amplitude. Typical frequency range of the oscillations is 0.5-8 kHz. The activity starts with low amplitude and high frequency, f=6-8 kHz. In the time-scale of 5-10 ms the mode amplitude grows substantially. Simultaneously, the frequency dramatically decreases to 0.5-1.5 kHz. In many cases the |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://epsppd.epfl.ch/Madeira/html/pdf/P1.021.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
