The effect of divertor baffling on Alcator C-Mod discharges

被引：30

作者：

Pitcher, CS ^{[1
]}

Boswell, CJ ^{[1
]}

Goetz, JA ^{[1
]}

LaBombard, B ^{[1
]}

Lipschultz, B ^{[1
]}

Rice, JE ^{[1
]}

Terry, JL ^{[1
]}

机构：

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

来源：

PHYSICS OF PLASMAS | 2000年 / 7卷 / 05期

关键词：

D O I：

10.1063/1.874013

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The effect of divertor baffling on Alcator C-Mod [Hutchinson et al., Phys. Plasmas 1, 1511 (1994)] discharges has been investigated using a novel divertor bypass. The bypass allows the in situ variation of the mechanical conductance from the divertor plenum to the main chamber between or even during discharges. The results indicate a strong dependence on baffling for the compression of deuterium and recycling impurity gases in the divertor plenum in a variety of C-Mod discharges, indicating that tight baffling would be desirable in a future tokamak reactor. There is no apparent effect of the divertor baffling for the Ohmic, L-mode and EDA (Enhanced D-alpha) H-mode discharges in this study on main chamber neutral particle populations, scrape-off-layer flows, nonrecycling impurity screening, global energy confinement or H-mode threshold powers. (C) 2000 American Institute of Physics. [S1070-664X(00)94405-7].

引用

页码：1894 / 1903

页数：10

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