Fast backward drift of pellet ablatant in tokamak plasmas
Fast backward drift of pellet ablatant in tokamak plasmas
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DOI：
10.1103/physrevlett.82.2685
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发表时间：
1999-03-29
影响因子：
8.6
通讯作者：
Oomens, AAM
中科院分区：
文献类型：
--
作者：
de Kloe, J;Noordermeer, E;Oomens, AAM
在Rijnhuizen Tokamak项目中，用16根纤维阵列沿着非常窄的视线观察颗粒轨迹，研究了颗粒烧蚀。观测到烧蚀云快速向后漂移远离球团。这对确定燃料分布和球团在等离子体中的穿透具有重要意义。此外，这种烧蚀云的运动为经常观测到的光发射条纹提供了新的解释。与颗粒周期性地离开消融云的图像相反，消融云周期性地远离颗粒。[s0031 - 9007(99) 08796 - 7]。
Pellet ablation in the Rijnhuizen Tokamak Project has been studied with an array of 16 fibers viewing the pellet trajectory along very narrow lines of sight. Rapid backward drift of the ablation cloud away from the pellet was observed. This has implications for the determination of the fueling profile and the penetration of the pellet in the plasma. Furthermore, this movement of the ablation cloud offers a new explanation for the often observed striations in the light emission. In contrast to the picture of the pellet periodically leaving the ablation cloud, the ablation cloud moves periodically away from the pellet. [S0031-9007(99)08796-7].