| ATOMIC AND MOLECULAR PHYSICS |
|
|
|
|
Simulation of Hydrogen Emission Spectrum in Debye Plasmas |
| DING Qi-Yong1,2**, ZHANG Song-Bin3, WANG Jian-Guo1
|
1The Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088
2Graduate School of China Academy of Engineering Physics, P.O. Box 2101, Beijing 100088
3Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026
|
|
| Cite this article: |
|
DING Qi-Yong, ZHANG Song-Bin, WANG Jian-Guo 2011 Chin. Phys. Lett. 28 053202 |
|
|
|
|
Abstract We investigate the screening effects on the spectrum of spontaneous radiation and radiative recombination to the 1s, 2s and 2p states of hydrogen with total atom density N=1.7×1019 cm−3 and electron temperatures 1 eV, 2 eV and 5 eV under the local thermodynamic equilibrium (LTE) model. The needed atomic energy levels, the radiative transition probabilities and radiative recombination cross sections are calculated by solving the Schrödinger equation numerically incorporating the Debye–Hückel model in plasmas. The plasma emission spectrum is simulated for the first time by using the screened atomic parameters. The red shift and the cutoff of Rydberg spectra are observed and it is also found that the 2 eV electron temperature case has the strongest screening effects and the emission spectra to the 2s and 2p states are more likely affected by screening effects than that of the 1s state.
|
| Keywords:
32.30.-r
52.25.-b
|
|
|
Received: 28 October 2010
Published: 26 April 2011
|
|
|
|
|
|
|
|
[1] Salzman D 1998 Atomic Physics in Hot Plasmas (Oxford: Oxford University)
[2] Murillo M S and Weisheit J C 1998 Phys. Rep. 302 1
[3] Nantel M, Ma G, Gu S, Côté C Y, Itatani J and Umstadter D 1998 Phys. Rev. Lett. 80 4442
[4] Saemann A, Eidmann K, Golovkin I E, Mancini R C andersson E, Förster E and Witte K 1999 Phys. Rev. Lett. 82 4843
[5] Goto M, Sakamoto R and Morita S 2007 Plasma Phys. Control. Fusion 49 1163
[6] Salvat F, Fernfindez-Varea J M and Williamson Jr W 1995 Comput. Phys. Commun. 90 151
[7] Qi Y Y, Wang J G and Janev R K 2008 Phys. Rev. A 78 062511
[8] Fujimoto T 2004 Plasma Spectroscopy (Oxford: Oxford University Press,)
[9] Qi Y Y, Wu Y, Wang J G and Qu Y Z 2009 Phys. Plasmas 16 023502
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
