HELIUM EXHAUST STUDIES IN H-MODE DISCHARGES IN THE DIII-D TOKAMAK USING AN ARGON-FROSTED DIVERTOR CRYOPUMP

被引：32

作者：

WADE, MR ^{[1
]}

HILLIS, DL ^{[1
]}

HOGAN, JT ^{[1
]}

MAHDAVI, MA ^{[1
]}

MAINGI, R ^{[1
]}

WEST, WP ^{[1
]}

BROOKS, NH ^{[1
]}

BURRELL, KH ^{[1
]}

GROEBNER, RJ ^{[1
]}

JACKSON, GL ^{[1
]}

KLEPPER, CC ^{[1
]}

LAUGHON, G ^{[1
]}

MENON, MM ^{[1
]}

MIODUSZEWSKI, PK ^{[1
]}

机构：

[1] GEN ATOM CO,SAN DIEGO,CA 92184

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.74.2702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first experiments demonstrating exhaust of thermal helium in a diverted, H-mode deuterium plasma have been performed on the DIII-D tokamak. The helium, introduced via gas puffing, is observed to reach the plasma core, and then is readily removed form the plasma with a time constant of ∼10-20 energy-confinzement times by an in-vessel cryopump conditioned with argon frosting. Detailed analysis of the helium profile evolution suggests that the exhaust rate is limited by the exhaust efficiency of the pump (∼5%) and not by the intrinsic helium-transport properties of the plasma. © 1995 The American Physical Society.

引用

页码：2702 / 2705

页数：4

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