Observations of cold, high density plasma in the private flux region of the Alcator C-Mod divertor

被引：14

作者：

Boswell, CJ ^{[1
]}

Terry, JL ^{[1
]}

LaBombard, B ^{[1
]}

Lipschultz, B ^{[1
]}

Goetz, JA ^{[1
]}

机构：

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

来源：

JOURNAL OF NUCLEAR MATERIALS | 2001年 / 290卷

关键词：

(E)over-right-arrow x (B)over-right-arrow drift; Alcator C-Mod; divertor spectroscopy; recombination;

D O I：

10.1016/S0022-3115(00)00590-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Significant plasma density has been observed in the private flux zone of the Alcator C-Mod tokamak. The behavior of the D-gamma emission profiles is consistent with the source of the plasma being due to an (E) over right arrow x (B) over right arrow drift generated by a poloidal temperature gradient. The plasma flux due to this drift is derived and evaluated. A plasma flux into the private flux zone is inferred by measurements of volumetric recombination using a tangentially viewing CCD camera and several spectroscopic views observing the high n-lines of the D-0 Balmer series. For the case of an attached divertor the inferred plasma flux to the PFZ has a linear scaling with respect to plasma pressure, as is expected from the temperature-gradient-induced, (E) over right arrow x (B) over right arrow drift. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：556 / 560

页数：5

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