中国物理B ›› 2006, Vol. 15 ›› Issue (12): 3000-3004.doi: 10.1088/1009-1963/15/12/038

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Simulation of radiation losses using non-coronal model on HL-2A

陈 伟, 杨青巍, 李 伟   

  1. Southwestern Institute of Physics, Chengdu 610041, China
  • 收稿日期:2006-02-28 修回日期:2006-04-29 出版日期:2006-12-20 发布日期:2006-12-20

Simulation of radiation losses using non-coronal model on HL-2A

Chen Wei(陈伟)†, Yang Qing-Wei(杨青巍), and Li Wei(李伟)   

  1. Southwestern Institute of Physics, Chengdu 610041, China
  • Received:2006-02-28 Revised:2006-04-29 Online:2006-12-20 Published:2006-12-20

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摘要： In this paper, the radiation losses of impurity on HL-2A have been simulated by assuming the profiles electron temperature and density and solving ionization rate equation under conditions of non-coronal radiation. The time required for an impurity species to establish equilibrium is proved to be sensitively dependent on the plasma electron temperature, and it is strongly correlated with the ionization state distribution during equilibrium establishment of impurity species. It is found from simulation results that the residence parameter plays an important role in the enhancement of radiation losses of plasma.

Abstract: In this paper, the radiation losses of impurity on HL-2A have been simulated by assuming the profiles electron temperature and density and solving ionization rate equation under conditions of non-coronal radiation. The time required for an impurity species to establish equilibrium is proved to be sensitively dependent on the plasma electron temperature, and it is strongly correlated with the ionization state distribution during equilibrium establishment of impurity species. It is found from simulation results that the residence parameter plays an important role in the enhancement of radiation losses of plasma.

Key words: ionization rate equation, radiation losses, radiated power coefficient, residence parameter

中图分类号:  (Impurities in plasmas)

  • 52.25.Vy
52.55.Dy (General theory and basic studies of plasma lifetime, particle and heat loss, energy balance, field structure, etc.) 52.55.Fa (Tokamaks, spherical tokamaks)