Contribution of molecular activated recombination to hydrogen plasma detachment in the divertor plasma simulator NAGDIS-II

被引：30

作者：

Ezumi, N ^{[1
]}

Nishijima, D

Kojima, H

Ohno, N

Takamura, S

Krasheninnikov, SI

Pigarov, AY

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Energy Engn & Sci, Nagoya, Aichi 4648603, Japan

[2] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1999年 / 266卷

基金：

日本学术振兴会;

关键词：

collisional-radiative model; detached plasma; divertor plasma; divertor simulator; gas-target divertor; hydrogen; molecules; plasma neutral interaction; recombination;

D O I：

10.1016/S0022-3115(98)00533-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 Palmer 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 diverters are also discussed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：337 / 342

页数：6

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