Contribution of molecular activated recombination to hydrogen plasma detachment in the divertor plasma simulator NAGDIS-II
Contribution of molecular activated recombination to hydrogen plasma detachment in the divertor plasma simulator NAGDIS-II
复制标题
DOI：
10.1016/s0022-3115(98)00533-9
复制
发表时间：
1999-03
影响因子：
3.1
通讯作者：
N. Ezumi;D. Nishijima;H. Kojima;N. Ohno;S. Takamura;S. Krasheninnikov;A. Pigarov
中科院分区：
文献类型：
--
作者：
N. Ezumi;D. Nishijima;H. Kojima;N. Ohno;S. Takamura;S. Krasheninnikov;A. Pigarov
我们在线性偏滤器等离子体模拟器中对与分子激活复合（MAR）相关的分离氢等离子体进行了实验。在氢等离子体中，氢气喷流明显减少了离子粒子通量和靶板的热负荷。用碰撞辐射原子分子数据（CRAMD）程序对Balmer系列谱进行了详细的分析，结果表明MAR主要表现为Balmer系列发射强度对实验条件的弱依赖性。本文还讨论了托卡马克偏滤器中通过MAR或EIR（电子-离子复合，包括辐射复合和三体复合）实现等离子体分离所需的等离子体条件。
We have performed experiments on detached hydrogen plasmas associated with molecular activated recombination (MAR) in a linear divertor plasma simulator. Reductions of the ion particle flux and heat load to the target plate were clearly observed in hydrogen plasmas with the hydrogen gas puff. Detailed analysis of Balmer series spectra with the Collisional-Radiative Atomic-Molecular data (CRAMD) code shows that MAR mainly appears as a weak dependence of the Balmer series emission intensities on experimental conditions in detached hydrogen plasmas. The plasma conditions necessary to obtain plasma detachment through MAR or EIR (electron ion recombination including the radiative and three-body recombination) in tokamak divertors are also discussed.