Density Pro le Control with Current Ramping in a Transport Simulation of Ignitor
نویسنده
چکیده
Current ramping to achieve reversed shear (RS) con nement enhancement and peaked density pro les are crucial in achieving ignition conditions in Ignitor. Previous transport simulations used either xed density pro les or obtained at density pro les. In this report we explore enhancement con nement, and show a general scheme leading to density pro le peaking using the transport model JETTO in the Baldur simulations. In these simulations, peaked density pro les result from the formation of internal transport barrier due to reversed magnetic shear, which is produced by controlled plasma current and volume-averaged density ramping. Such a programmed Ohmic heating scheme is demonstrated to be an e ective approach to the ignition of a burning D-T plasma.
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تاریخ انتشار 2002