Calculations of electron impact for the Fe XXIV 3P(3/2,1/2)-> 2s(1/2) lines

	Calculations of electron impact for the Fe XXIV 3P(3/2,1/2)-> 2s(1/2) lines
	Qi, JB; Chen, CY; Xia, HN; Zhao, Y; Wang, YS
刊名	JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
	2002-10-28
卷号	35 页码:4279-4286
ISSN号	0953-4075
英文摘要	Electron-impact cross sections for two Fe23+ line emissions 3p(3/2) --> 2s(1/2) and 3p(1/2) --> 2s(1/2) are calculated using the semi-relativistic distorted-wave Born-exchange approximation. We have included line formation by direct excitation, radiative cascades (RC), resonant excitation (RE) and dielectronic recombination (DR) satellites with captured electrons in n greater than or equal to 5 levels in our calculation. There is a good overall agreement between the experimental data and our theoretical values for these two individual lines. The calculation confirms the narrow resonances from DR satellite emission and RE near excitation threshold. At the temperature near where the Fe23+ abundance peaks (kT similar to 1.7 keV), the DR satellites contribute similar to6%, RE contributes similar to3% and RC contributes similar to12% of the rates of line emission.
WOS关键词	CROSS-SECTIONS ; EXCITATION ; TRANSITIONS ; EMISSION ; IONS
WOS研究方向	Optics ; Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000179551600016
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/38141]
专题	中国科学院近代物理研究所
通讯作者	Chen, CY
作者单位	Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	Qi, JB,Chen, CY,Xia, HN,et al. Calculations of electron impact for the Fe XXIV 3P(3/2,1/2)-> 2s(1/2) lines[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2002,35:4279-4286.
APA	Qi, JB,Chen, CY,Xia, HN,Zhao, Y,&Wang, YS.(2002).Calculations of electron impact for the Fe XXIV 3P(3/2,1/2)-> 2s(1/2) lines.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,35,4279-4286.
MLA	Qi, JB,et al."Calculations of electron impact for the Fe XXIV 3P(3/2,1/2)-> 2s(1/2) lines".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 35(2002):4279-4286.