Dielectronic recombination of Co-like gold ions | |
Meng, Fan-Chang; Chen, Chong-Yang; Shi, Xi-Heng; Wang, Yan-Sen; Zou, Ya-Ming; Gu, Ming-Feng | |
刊名 | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS |
2007-11-14 | |
卷号 | 40页码:4269-4286 |
ISSN号 | 0953-4075 |
DOI | 10.1088/0953-4075/40/21/013 |
英文摘要 | Ab initio calculation of the total dielectronic recombination (DR) rate coefficient from the ground and the first excited states of Co-like gold is performed employing the relativistic distorted-wave approximation with configuration interaction. The DR contributions are explicitly taken into account from the relevant complexes of a Ni-like ion: 3d(3/2)(3)3d(5/2)(6) n'l', 3p(5) 3d(10) n'l',3s 3p(6) 3d(10) n'l', 3d(8) 4ln'l', 3p(5) 3d(9) 4ln'l' and 3s 3p(6) 3d(9) 4ln'l' with n' <= 25, and 3d(8) 5ln'l' with n' <= 9. The contributions from a higher n' complex are evaluated by an extrapolation procedure. The DR contributions mainly come from complex series 3d(8) 4ln'l' and 3p(5) 3d(9) 4ln'l'. The complex series 3p(5) 3d(10)n'l' and 3d(8) 5ln'l' also contribute significantly to the total DR rates at low and high electron temperatures, respectively. The l' and n' dependences of the partial rate coefficient are investigated. The possible important decays into autoionizing levels followed by radiative cascade ( DAC) from the resonant levels are taken into account, as well as the resonant stabilizing and nonresonant stabilizing transitions. The inclusion of DAC transitions enlarges the total DR rate coefficients by a factor of about 10% and may break down the usual n n'(-3) scaling law of the partial DR rates along some complex series. To evaluate the high n' contributions from these complex series, the level- by- level extrapolation method is developed to include DAC effects. The total DR rate coefficients are fitted to an empirical formula. The present results are compared with those from the semiempirical Burgess - Merts approximation. The DR rate coefficients of Ni- like gold are also presented and compared to those of Colike gold. In addition, some comments on the published DR data for the NiI isoelectronic sequence are drawn from the present calculation. |
WOS关键词 | AR-LIKE TUNGSTEN ; NI-LIKE IONS ; RATE COEFFICIENTS ; FE ; CU ; CONFIGURATIONS ; ISOSEQUENCES ; PLASMAS/ ; KINETICS ; FORMULA |
WOS研究方向 | Optics ; Physics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000250688100015 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.186/handle/113462/28001] |
专题 | 中国科学院近代物理研究所 |
通讯作者 | Meng, Fan-Chang |
作者单位 | 1.Fudan Univ, Inst Modern Phys, Shang EBIT Lab, Shanghai 200433, Peoples R China 2.Fudan Univ, Appl Ion Beam Phys Lab, Key Lab Minist Educ, Shanghai 200433, Peoples R China 3.Stanford Univ, Dept Phys, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | Meng, Fan-Chang,Chen, Chong-Yang,Shi, Xi-Heng,et al. Dielectronic recombination of Co-like gold ions[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,2007,40:4269-4286. |
APA | Meng, Fan-Chang,Chen, Chong-Yang,Shi, Xi-Heng,Wang, Yan-Sen,Zou, Ya-Ming,&Gu, Ming-Feng.(2007).Dielectronic recombination of Co-like gold ions.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS,40,4269-4286. |
MLA | Meng, Fan-Chang,et al."Dielectronic recombination of Co-like gold ions".JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 40(2007):4269-4286. |
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