Journal of the Korean Physical Society

  • 제73권9호
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  • Pages.1310-1314
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  • 2018
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  • 0374-4884(pISSN)
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  • 1976-8524(eISSN)
한국물리학회 (Korean Physical Society)
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Calculation of Kappa-Averaged Collision Strengths of Silicon VIII Ion for a Non-Maxwellian Distribution

  • He, Jian (School of Physics and Engineering, Henan University of Science and Technology) ;
  • Zhang, Qingguo (School of Physics and Engineering, Henan University of Science and Technology)
  • 투고 : 2018.05.04
  • 심사 : 2018.07.10
  • 발행 : 2018.11.15
⟨ 이전 논문 다음 논문 ⟩

초록

Non-Maxwellian distributions are found in the laboratory and space plasmas. For an accurate study of plasmas, the Kappa-averaged collision strengths of silicon VIII ion for $4^0S_{3/2}-2^0D_{3/2}$, $4^0S_{3/2}-2^0D_{5/2}$ and $2^0D_{3/2}-2^0D_{5/2}$ transitions are calculated for Kappa distributions with ${\kappa}=2$, 3 and 5 and for temperatures from $10^{4.5}K$ to $10^{6.5}K$. Results indicate that significant differences occur between the averaged collision strengths for the Maxwellian and the Kappa distributions. Fuythermore, and for each ${\kappa}$ value, the Kappa-averaged collision strengths vary in a complicated way with temperature for the $4^0S_{3/2}-2^0D_{3/2}$ and $4^0S_{3/2}-2^0D_{5/2}$ transitions while they decrease with increasing temperature for the $2^0D_{3/2}-2^0D_{5/2}$ transition. The calculation is significant if plasmas are to be studied for a non-Maxwellian distribution.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Henan Province's Education Department's

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