Multi-species impurity granule injection and mass deposition projections in NSTX-U discharges
作者: R. LunsfordA. BortolonA.L. RoquemoreD.K. MansfieldM.A. JaworskiR. KaitaR. MaingiA. Nagy
作者单位: 1Princeton Plasma Physics Laboratory, PO Box 451, Princeton, NJ 08543, United States of America
刊名: Nuclear Fusion, 2017, Vol.57 (7)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aa6cd3
原始语种摘要: By employing a neutral gas shielding (NGS) model to characterize impurity granule injection, the ablation rates for three different species of granule: lithium, boron, and carbon, are determined. Utilizing the duration of ablation events recorded on experiments performed at DIII-D to calibrate the NGS model, we quantify the ablation rate with respect to the plasma density profile. The species-specific granule shielding constant is then used to model granule ablation within NSTX-U discharges. Simulations of 300, 500 and 700 micron diameter granules injected at 50 m s−1 are presented for NSTX-U L-mode type plasmas, as well as H-mode discharges with low natural ELM frequency. Additionally, ablation calculations of 500 micron granules of each species are presented at velocities...
全文获取路径: IOP 

  • granule 砂砾
  • ablation 剥蚀
  • species 
  • impurity 杂质
  • injection 贯入
  • shielding 屏蔽
  • micron 微米
  • deposition 沉积
  • characterize 成为...的特性
  • plasma 深绿玉髓