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Fast-electron-impact ionization process by 3p of hydrogen-like ions in Debye plasmas |
Qi Yue-Ying (祁月盈)a, Ye Dan-Dan (叶丹丹)a, Wang Jian-Guo (王建国)b, Qu Yi-Zhi (屈一至)c |
a School of Mathematical & Physics and Information Engineering, Jiaxing University, Jiaxing 314001, China; b Institute of Applied Physics and Computational Mathematics, Beijing 100088, China; c College of Material Sciences and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract The plasma screening of fast-electron-impact-ionization by excited state (3p) of Hydrogen-like ions was investigated in the first Born approximation with a plasma screening length δ varying from 1000a0 to 10a0. The generalized oscillator strength densities showed dramatic changes: some accessional minima occurred along with a remarkable enhancement in certain continuum-energy domains. The double-differential cross sections exhibit not only the same structures as the Bethe surface for moderate and large momentum transfers, but also a broadened enhancement for small momentum transfers. The single-differential cross sections exhibit a near-zero-energy-enhancement and prodigious multiple-shape resonances, depending on the continuum energy and the plasma screening length. These features are analogous to those of the photo-ionization cross section. These findings, for both types of cross section, can be explained by processes associated with continuum electrons, as long as the potential has a short-range character.
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Received: 09 July 2014
Revised: 31 October 2014
Accepted manuscript online:
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PACS:
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34.80.Dp
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(Atomic excitation and ionization)
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52.20.-j
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(Elementary processes in plasmas)
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Fund: Project supported by the National Basic Research Program of China (Grant No. 2013CB922200) and the National Natural Science Foundation of China (Grant Nos. 11005049, 11025417, and 10974021). |
Corresponding Authors:
Qi Yue-Ying
E-mail: yying_qi@mail.zjxu.edu.cn
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Cite this article:
Qi Yue-Ying (祁月盈), Ye Dan-Dan (叶丹丹), Wang Jian-Guo (王建国), Qu Yi-Zhi (屈一至) Fast-electron-impact ionization process by 3p of hydrogen-like ions in Debye plasmas 2015 Chin. Phys. B 24 033403
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[1] |
Rostas F 1985 Spectral Line Shapes (Vol. 3) (New York: Walter de Gruyter)
|
[2] |
Inokuti M 1971 Rev. Mod. Phys. 43 297
|
[3] |
Bethe H 1930 Ann. Physik 5 325
|
[4] |
http://atom.curtin.edu.au/ccc-ww/index.html
|
[5] |
http://physics.nist.gov/physrefdata/ionization/atom_index.html
|
[6] |
Kim Y K and Rudd M E 1994 Phys. Rev. A 50 3954
|
[7] |
Guerra M, Parente F, Indelicato P and Santos J P 2012 Inter. J. M. Spectr. 313 1
|
[8] |
Tsipinyuk B, Bekkerman A and Kolodney E 2012 Inter. J. M. Spectr. 328 2
|
[9] |
Wu Y, Wang G Y, Mu Q and Zhao Q 2014 Chin. Phys. B 23 013401
|
[10] |
Liu L J, J C C, Zhang L M, Chen J J and Chen Z J 2013 Chin. Phys. B 22 103401
|
[11] |
http://www-cfadc.phy.ornl.gov
|
[12] |
Cheng H D, Liu X J, Yuan Z S, Zhu L F, Zhong Z P, Li W B and Xu K Z 2002 Nuclear Phys. Rev. 19 49
|
[13] |
Leung K T 1999 Journal of Electron Spectroscopy and Related Phenomena 100 237
|
[14] |
Sun J M, Zhong Z P, Zhu L F, Li W B, Liu X J, Yuan Z S and Xu K Z 2004 Phys. Rev. A 70 012708
|
[15] |
Fan L L, Zhong Z P, Zhu L F, Liu X J, Yuan Z S, Sun J M and Xu K Z 2005 Phys. Rev. A 71 032704
|
[16] |
Murillo M S and Weisheit J C 1998 Phys. Rep. 302 1
|
[17] |
Qi Y Y, Wang J G and Janev R K 2008 Phys. Rev. A 78 062511
|
[18] |
Qi Y Y, Wang J G and Janev R K 2009 Phys Rev. A 80 063404
|
[19] |
Qi Y Y, Wu Y, Wang J G and Qu Y Z 2009 Phys. Plasmas 16 023502
|
[20] |
Zhang S B, Wang J G and Janev R K 2010 Phys. Rev. Lett. 104 023203
|
[21] |
Zammit M C, Fursa D V and Bray I 2010 Phys. Rev. A 82 052705
|
[22] |
Zammit M C, Fursa D V, Bray I and Janev R K 2011 Phys. Rev. A 84 052705
|
[23] |
Kar S and Ho Y K 2011 J. Phys. B: At. Mol. Opt. Phys. 44 015001
|
[24] |
Jung Y D 1997 Phys. Plasmas 4 21
|
[25] |
Xie L Y, Jiang J and Dong C Z 2014 Chin. Phys. Lett. 31 023401
|
[26] |
Goto M, Sakamoto R and Morita S 2007 Plasma. Phys. Controlled Fusion 49 1163
|
[27] |
Nantel M, Ma G, Gu S, Côté C Y, Italani J and Umstadter D 2010 Phys. Rev. Lett. 80 4442
|
[28] |
Rogers F J, Graboske H C and Harwood D J 1970 Phys. Rev. A 1 1577
|
[29] |
Sahoo S and Ho Y K 2006 Phys. Plasmas 13 063301
|
[30] |
Sahoo S and Ho Y K 2009 Res. Lett. Phys. 2009 832413
|
[31] |
Qi Y Y, Wang J G and Janev R K 2011 Eur. Phys. J. D 63 327
|
[32] |
Jung Y D and Yoon Y S 1996 J. Phys. B: At. Mol. Opt. Phys. 29 3549
|
[33] |
Qi Y Y, Ning L N, Wang J G and Qu Y Z 2013 Phys. Plasmas 20 123301
|
[34] |
Zhang S B, Wang J G, Janev R K, Qu Y Z and Chen X J 2010 Phys. Rev. A 81 065402
|
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