HELIUM EXHAUST IN PLASMAS WITH STRONG RADIATIVE EDGE COOLING

被引：28

作者：

SAMM, U

BOEDO, J

BERTSCHINGER, G

DIPPEL, KH

EURINGER, H

FINKEN, KH

GRAY, D

HILLIS, D

POSPIESZCZYK, A

REITER, D

TOKAR, M

UNTERBERG, B

机构：

[1] UNIV CALIF LOS ANGELES,INST PLASMA & FUS RES,LOS ANGELES,CA 90024

[2] OAK RIDGE NATL LAB,OAK RIDGE,TN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 196卷

关键词：

D O I：

10.1016/S0022-3115(06)80113-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The compatibility of radiative edge cooling by neon injection and He exhaust with the pump limiter ALT-II is studied on TEXTOR. It is demonstrated that in plasmas with strong auxiliary heating (2 MW NBI) and with the highest average electron densities (n(e)BAR = 5.5 X 10(19) m-3) the effective confinement time tau(P)* for He has a minimum. This good pumping performance is maintained even for cases in which up to 90% of the heating power is radiated from the plasma boundary (cold radiative edge). The processes inside the scoops of the pump limiter (neutral particle transport, re-ionization) and the variation of particle confinement in the main plasma dominate this behavior.

引用

页码：633 / 636

页数：4

共 13 条

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