Dynamics of the changes in the parameters of the arc plasma during the destruction of a helium-induced tungsten fuzz by arc pulses
作者: S.A. BarengoltsD. HwangboS. KajitaN. OhnoV.P. FrolovaA.G. NikolaevE.M. OksD.L. ShmelevM.M. TsventoukhG. Yu Yushkov
刊名: Nuclear Fusion, 2020, Vol.60 (4)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/ab73c3
原始语种摘要: This paper presents the results of a study of the mass-to-charge composition of the plasma of a W-fuzz-cathode arc at a discharge duration of 250 µs. It has been found that the mean charge of tungsten ions in the arc plasma varies from +1 to +3 as the fuzz structure is destroyed. The formation of fuzz changes the electrical and thermal characteristics of the cathode material, resulting in a decrease in the electron temperature of the arc plasma and, hence, in its mean charge. In cases of complete destruction of a helium-induced tungsten fuzz, the relative content of helium ions in the arc plasma was observed to be higher for samples less exposed to helium plasma.
全文获取路径: IOP 

  • tungsten 
  • plasma 深绿玉髓
  • helium 
  • parameters 参数
  • induced 感应的
  • charge 电荷
  • resulting 引起的
  • cathode 阴极
  • thermal 热的
  • formation 建造