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DIOSCUR (DIvertor Optimisation and Steady CURrent) is a tokamak devoted to the study of plasma regimes approaching steady state operations and demonstrating solutions which can be applied to a reactor. A preliminary analysis of the neutral beam current drive (NBCD) on DIOSCUR has been performed by using a numerical simulation model. The dependence of the current drive figure-of-merit gamma(nb) = I(nb)nR/P(b) and driven current profile on both beam and plasma parameters has been studied. For H-mode discharge with Z(eff) = 2 and a D(0) beam injection, beam power P(b) = 50 MW, beam particle energy E(b) = 1 MeV, the driven current is 4.9 MA, corresponding to a figure-of-merit gamma(nb) = 0.37.

Additional information

Authors: ZHANG C, Institute of Plasma Physics, Academia Sinica, Hefei (CN);ROMANELLI F, ENEA, Centro Ricerche Energia Frascati, Roma (IT)
Bibliographic Reference: Report: RT/NUCL/92/28 EN (1992) 22 pp.
Availability: Available from Servizio Studi e Documentazione, ENEA, Centro Ricerche Energia Frascati, C.P. 65-00044 Frascati, Roma (IT)
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