Current Shutdown in the T-10 Tokamak Studied by Pellet Injection

Timokhin, V. M.; Sergeev, V. Yu.; Kuteev, B. V.
September 2001
Technical Physics Letters;Sep2001, Vol. 27 Issue 9, p795
Academic Journal
Processes accompanying in the tokamak discharge shutdown were studied by injecting a large number of heavy-impurity (KCl) pellets (∼10[sup 19] atoms) into the T-10 tokamak operating in the ohmic regime. A more than twofold drop in the current at an average rate of 12 MA/s was observed, which corresponded to a considerable (exceeding 75%) decrease in the magnetic energy of the plasma column. The observed phenomena showed evidence of the production of runaway electrons during the discharge current drop.


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