Experimental divertor physics
Experimental divertor physics
复制标题
DOI：
10.1088/0741-3335/39/6/001
复制
发表时间：
1997-06
影响因子：
2.2
通讯作者：
C. Pitcher;P. Stangeby
中科院分区：
文献类型：
--
作者：
C. Pitcher;P. Stangeby
本文主要从实验角度对托卡马克中偏滤器的物理原理进行了综述，不过在可能的情况下也包含了简单的解析模型。文章涵盖了偏滤器研究中的四个主要问题领域：（1）主等离子体排出的等离子体能量的广泛分散；（2）在抽气管道附近产生足够高的气体压强，以便能够从系统中去除燃料和氦（“灰”）气；（3）消除或减少杂质产生；（4）对在等离子体边界产生的或有意添加的杂质进行屏蔽，使其不进入等离子体核心。本文开头介绍了一个简单的解析模型——“两点”模型，它为将来自许多装置的实验结果与简单推导的预期进行比较提供了一个框架。文中还对未来研究重点的方向得出了结论。
The physics of divertors in tokamaks is reviewed, primarily from an experimental point of view, although where possible simple analytic modelling is included. The paper covers the four main subject areas at issue in divertor research: (1) the wide dispersal of plasma power exhausted from the main plasma, (2) the production of sufficiently high gas pressures in the vicinity of pump ducts to enable the removal of fuel and helium (`ash') gas from the system, (3) the elimination or reduction of impurity production and (4) the screening of impurities produced, or intentionally added, at the plasma boundary from the plasma core. A simple analytic model, the `two-point' model, is introduced early in the paper and provides a framework for comparison of the experimental results, drawn from many machines, with simply derived expectations. Conclusions regarding the direction of future research priorities are made.