Impurity behaviours of HL-2A divertor Tokamak during the initial operation period

• 来源期刊: 中国物理（英文版）
• 关键词: plasma wall conditioning impurity
• 年，卷（期）: 2006,（3）
• 页码范围: 585-592
• 页数: 8页
• 语种: 英文

摘要

The divertor configuration was successfully formed and the siliconization as a wall conditioning was first achieved on HL-2A tokamak experimentally in 2004. The divertor configuration is reconstructed by the use of the CFC code. Impurity as an important issue is investigated in the experiments with divertor configuration and wall conditioning. Impurities dramatically decrease after both the divertor configuration is formed and silicon is coated on the surface of the vacuum vessel.