Deposition of silicon on carbon surfaces during tokamak discharges at TEXTOR-94

被引：2

作者：

Mank, G ^{[1
]}

Philipps, V ^{[1
]}

Esser, HG ^{[1
]}

Biel, W ^{[1
]}

Brix, M ^{[1
]}

Finken, KH ^{[1
]}

Pospieszczyk, A ^{[1
]}

机构：

[1] Forschungszentrum Julich, EURATOM Assoc, Inst Plasma Phys, D-5170 Julich, Germany

来源：

PHYSICA SCRIPTA | 1999年 / T81卷

关键词：

D O I：

10.1238/Physica.Topical.081a00070

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Silane (SiH(4)) has been injected directly into the scrape-off layer of TEXTOR-94 through 10 injection nozzles located at the toroidal edge of one limiter blade. The resulting temporal changes in the line emission of silicon and carbon due to the deposition and erosion of Si are spectroscopically monitored. Thus an erosion time can be defined, which is 5-10 seconds under ohmic heating and 2-3 seconds for auxiliary heated I-mode similar conditions. This method offers a possibility to deposit a hard, robust coating during discharges and is thus a possible coating technique for steady state devices.

引用

页码：70 / 73

页数：4

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