Wall conditioning and particle control in Extrap T2

被引：3

作者：

Bergsaker, H

Larsson, D

Brunsell, P

Moller, A

Tramontin, L

机构：

[1] UNIV PADUA,DIPARTIMENTO INGN ELETTR,PADUA,ITALY

[2] ROYAL INST TECHNOL,EURATOM,NFR FUS ASSOC,ALFVEN LAB,DEPT FUS PLASMA PHYS,S-10044 STOCKHOLM,SWEDEN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1997年 / 241卷

关键词：

EXTRAP-T2; boundary plasma; reversed field pinch; wall pumping; wall conditioning;

D O I：

10.1016/S0022-3115(97)80180-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Extrap T2 reversed field pinch experiment is operated with the former OHTE vacuum vessel, of dimensions R = 1.24 m and a = 0.18 m and with a complete graphite liner. It is shown that a rudimentary density control can be achieved by means of frequent helium glow discharge conditioning of the wall. The standard He-GDC is well characterized and reproducible. The trapping and release of hydrogen and impurities at the wall surfaces have been studied by mass spectrometry and surface analysis. The shot to shot particle exchange between wall and plasma can be approximately accounted for.

引用

页码：993 / 997

页数：5

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