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Experimental determination of the transient transport and of fluctuations relev...
Niedermeyer, H.; Dodel, G.; Hendler, M.; Fussmann, G.; Gehre, O.; Gentile, K.W.; Giannone, L.; Holzhauer, E.; Krieger, K.; Rudyj, A.; Theimer, G.Particle transport was studied in ASDEZ with modulated puffing of the discharge gas and of impurities. The energy transport is investigated by numerical simulation of the heat pulse after the swatooth crash. Small scale density fluctuations are investigated in the confinement region with far infrared scattering and reflectometry and in the edge plasma with langmuir probes and Ha diagnostic. In addition to a dif...
Recent results of H-mode studies on asdex
Wagner, F.; Field, A.R.; Fussmann, G.; Hofmann, J.V.; Manso, M.E.; Vollmer, O.; Matias, JoséIn a comparative study of various confinement regimes the H-mode demonstrated the best performance. Confinement enhancement factors (above ITER 89-P L-mode scaling) in the range of 1.6 fH 2.8 have been achieved with values depending on the divertor configuration, the wall condition, ELM behaviour and the plasma ion spicies. Long-pulse H-phases, withELMs, of up to 3.5s with constant confinement time, recycling a...
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