A Relativistic Theory of Electron Cyclotron Current Drive Efficiency
A Relativistic Theory of Electron Cyclotron Current Drive Efficiency
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DOI：
10.13182/fst11-a11734
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发表时间：
2011-02
影响因子：
0.9
通讯作者：
Y. Hu;Y. Hu;Y. Lin-Liu
中科院分区：
文献类型：
--
作者：
Y. Hu;Y. Hu;Y. Lin-Liu
摘要基于绿色函数技术，研究了电子回旋电流驱动（ECCD）效率的完全相对论理论。对均匀磁场中的电流驱动效率进行了数值计算。与ITER运行相关的参数区域的数值结果进行了比较，在两个简化模型中，电子-电子库仑碰撞算子分别近似其高速极限和半相对论形式。我们的研究结果表明，碰撞算子的半相对论近似应该是适当的ITER条件下的ECCD效率建模。
Abstract A fully relativistic theory of electron cyclotron current drive (ECCD) efficiency based on Green’s function techniques is considered. Numerical calculations of the current drive efficiency in a uniform magnetic field are performed. The numerical results with parameter regimes relevant to ITER operation are compared with those of two simplified models in which the electron-electron Coulomb collision operator is respectively approximated by its high-velocity limit and a semirelativistic form. Our results indicate that the semirelativistic approximation of the collision operator should be appropriate for modeling the ECCD efficiency under ITER conditions.