原子能科学技术2017，Vol.51Issue(8)：1351-1357,7.DOI:10.7538/yzk.2017.51.08.1351
托卡马克等离子体中快粒子触发的高频鱼骨模不稳定性研究
Study on Unstability of High Frequency Fishbone Mode Triggered by Fast Particle in Tokamak Plasma
摘要
Abstract
Based on neutral beam injection heating and electron cyclotron resonance heating,a general dispersion relation for fishbone-like internal kink mode was obtained when the spatial density profile of fast particle in Tokamak plasma was taken into account.The numerical results show that the internal kink mode can be stabilized by fast particles and high frequency fishbone mode can be triggered by fast particles in the case of near-axis heating.The real frequency of the mode is poroportional to the averaged toroidal precession frequency of fast particles.The growth rate of the mode depends on density gradient of fast particles and increases with density gradient.The fishbone mode can be driven into the second stable regime by barely passing fast particles and becomes stable in high specific pressure region.关键词
托卡马克等离子体/快粒子/鱼骨模/第二稳定区Key words
Tokamak plasma/fast particle/fishbone mode/the second stable regime分类
数理科学引用本文复制引用
竹锦霞,何宏达..托卡马克等离子体中快粒子触发的高频鱼骨模不稳定性研究[J].原子能科学技术,2017,51(8):1351-1357,7.基金项目
国家磁约束聚变能发展研究专项资助项目(2013GB112009) （2013GB112009）
