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Nagayama, Y.; Manickam, J.; Fredrickson, E.D.; Bell, M.; Budny, R.V.; Cavallo, A.; Janos, A.C.; McGuire, K.M.; Taylor, G.; Yamada, M.
Princeton Univ., NJ (United States). Plasma Physics Lab. Funding organisation: USDOE, Washington, DC (United States)1992
Princeton Univ., NJ (United States). Plasma Physics Lab. Funding organisation: USDOE, Washington, DC (United States)1992
AbstractAbstract
[en] A beta degradation event in a high βp, TFTR tokamak plasma is analyzed with X-ray and electron cyclotron emission (ECE) imaging techniques. Medium-n (toroidal mode number) instabilities with ballooning characteristics are observed near and within the q =1.5 surface during a slow degradation in the plasma β and precede a sudden partial collapse in the central plasma pressure. This is the first reported observation of a ballooning instability in the interior of a large, collisionless tokamak plasma
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Aug 1992; 15 p; CONTRACT AC02-76CH03073; FG02-89ER53297; OSTI as DE92018962; NTIS; INIS; US Govt. Printing Office Dep
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