Experiments on Gas Jet in the Wendelstein 7-AS Stellarator  

作　　者：姚良骅 J.Baldzuhn 

机构地区：[1]Southwestern Institute of Physics,Chengdu 610041,China [2]Max-Planck Institut fuer Plasma physik,EURATOM Ass.,17491 Greifswald,Germany

出　　处：《Plasma Science and Technology》2003年第5期1933-1938,共6页等离子体科学和技术（英文版）

基　　金：The project supported by the National Nature Science Foundation of China (Nos. 19775011 and 10075016) ; the China Nuclear Industry Science Foundation (No. 94C03033)

摘　　要：Wendelstein 7-AS (W7-AS) pertains to an advanced helical stellarator. A new fuelling method, the supersonic molecular beam injection (SMBI, named Gas Jet in Germany) system was installed in W7-AS in May 2001 as a cooperation research item co-supported by the National Nature Science Foundation of China and the Max-Planck Institute of Plasma Physics, Garching, Germany. The experiments of the gas jet with hydrogen or deuterium on W7-AS were implemented. The experimental results exhibit the following features such as high fuelling efficiency, stable high-density plasmas and reduction of the recycling fluxes from the vessel wall during injection. These crucial points show that the new fuelling method can be applied to long and stable discharges.Wendelstein 7-AS (W7-AS) pertains to an advanced helical stellarator. A new fuelling method, the supersonic molecular beam injection (SMBI, named Gas Jet in Germany) system was installed in W7-AS in May 2001 as a cooperation research item co-supported by the National Nature Science Foundation of China and the Max-Planck Institute of Plasma Physics, Garching, Germany. The experiments of the gas jet with hydrogen or deuterium on W7-AS were implemented. The experimental results exhibit the following features such as high fuelling efficiency, stable high-density plasmas and reduction of the recycling fluxes from the vessel wall during injection. These crucial points show that the new fuelling method can be applied to long and stable discharges.

关 键 词：gas jet (Supersonic Molecular Beam) injection wendelstein 7-AS stellarator fuelling 

分 类 号：O531[理学—等离子体物理]