The Finite Beta Effects on the Toroidal Field Ripple in a Tokamak Plasma

作     者：M.BUNNO Y.NAKAMURA Y.SUZUKI K.SHINOHARA G.MATSUNAGA K.TANI 

作者机构：Graduate School of Energy Science Kyoto UniversityGokasho Uji 611-0011 Japan National Institute for Fusion ScienceToki Gifu 509-5292 Japan Japan Atomic Energy AgencyNaka Ibaraki 311-0193 Japan Nippon Advanced Technology Co. LtdNaka Ibaraki 311-0102 Japan 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2013年第15卷第2期

页      面：115-118页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 081001[工学-通信与信息系统] 

基　　金：performed with the support and backing of the NIFS Collaborative Research Program 

主　　题：ripple VMEC ITER alpha particle F3D-OFMC 

摘      要：The efficiency of energetic ion confinement is reduced in a tokamak plasma by the non-axisymmetric field, namely the ripple field. The ripple field is produced by a finite number of toroidal field coils. It is affected by the non-axisymmetric finite beta effect. The three-dimensional MHD equilibrium calculation code VMEC is used to analyze the non-axisymmetric finite beta effect in a ripple tokamak. In the VMEC code, the flux coordinates are used, so the calculation region is limited to the area of plasma. To calculate the orbit outside the plasma, we develop a field calculation code, which is based on the Biot-Savart law. The details of the method and results are described in this paper.