作　　者： ; ;

机构地区： 广州大学理学院

出　　处： 《广州大学学报（自然科学版）》 2004年第5期389-391,共3页

摘　　要： 在考虑经典扩散、电子碰撞电离、激发和电荷交换条件下,数值模拟了托卡马克等离子体粒子的输运行为,计算了中性氢密度的空间分布,在日冕模型下得出了粒子体发射系数的空间分布,与测量结果相符.讨论了粒子入射速度对粒子约束时间的影响,结果表明反射粒子入射速度直接决定粒子约束时间的大小和空间分布. The behavior of particles transport in tokamak is simulated with taking into account the classical diffusion, the excitation and ionization collided by electron, and the charge exchange. The profile of hydrogen atom density is calculated, the emission coefficient of hydrogen atom is also derived from the coronal model, and the result fits close that of measurement. The influence of incident velocity on particle confinement time is discussed, and the result shows that the incident velocity of reflected particles directly determines on the magnitude and the profile.

关 键 词： 等离子体 粒子输运

领　　域： [理学] [理学]