Spatial distribution of atomic and ion hydrogen flux and its effect on hydrogen recycling in long duration confined and non-confined plasmas
Spatial distribution of atomic and ion hydrogen flux and its effect on hydrogen recycling in long duration confined and non-confined plasmas
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长持续时间约束和非约束等离子体中原子和离子氢通量的空间分布及其对氢回收的影响
DOI：
10.1016/j.nme.2017.03.027
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发表时间：
2017
影响因子：
2.6
通讯作者：
H. Ohwada
中科院分区：
文献类型：
--
作者：
A. Kuzmin;H. Zushi;I. Takagia;S. K. Sharma;M. Kobayashi;Y. Hirooka;T. Onchi;K. Hanada;N. Yoshida;K. Nakamura;A. Fujisawa;H. Idei;Y. Nagashima;M. Hasegawa;T. Mutoh;K. Mishra;H. Ohwada
为了了解原子氢在不同类型等离子体中的分布及其对回收的影响，使用了两种等离子体：非约束环形电子回旋共振（ECR）和约束长持续时间等离子体。渗透探头用于直接测量几个极向位置处的原子氢通量。由于氢气流向壁的离子和原子成分而对金属的渗透是无法区分的。为了直接估计离子的贡献，使用了朗缪尔探针。面向等离子体的组件 (PFC) 后面的增量轮廓几乎是恒定的，∼2 ×1018H/s/m2。
In order to understand the atomic hydrogen distribution in different kinds of plasma and its influence on the recycling, two kinds of plasmas were used: non-confined annular electron cyclotron resonance (ECR) and confined long duration plasmas. The permeation probes are used to measure directly the atomic hydrogen flux at several poloidal positions. The permeation through metals due to the ion and atom component of the hydrogen flux to the wall is indistinguishable. To estimate the contribution of the ions directly, Langmuir probes were used. TheГincprofile behind the plasma facing components (PFCs) is almost constant, ∼2 ×1018H/s/m2.