Scaling Law of Non-Inductive Current Drive Steady State Tokamak
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概要
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In non-inductive current drive steady state operation of tokamak reactor, it is desirable that the Qcd value determined by the plasma current balance is the same as the Q value determined by the plasma energy balance [Progress in the ITER Physics Basis, Nucl. Fusion 47, S285 (2007)]. The more quantitative scaling laws of Q and Qcd are derived from the scaling laws of electron density, beta ratio, energy confinement time and current drive efficiency. The reduced scaling laws of Q and Qcd are examined by comparison with the data of the standard scenario of inductive operation and the reference scenario of non-inductive operation of ITER. Sensitivities of Q and Qcd on the plasma parameters are studied and requirement is examined to satisfy Qcd ≈ Q.