Open AccessStudy on the relationship of average ionization stage with the electron temperat ure for Au laser produced plasma
Author(s) -
Hong Zhang,
Xinlu Cheng,
Xiangdong Yang,
Xie Fang-Jun,
Jiyan Zhang,
Yang Gao
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.3098
Subject(s) - atomic physics , ionization , electron , ion , charge (physics) , radiative transfer , plasma , electron temperature , physics , spectral line , electron density , materials science , nuclear physics , optics , quantum mechanics , astronomy
A collisional radiative model based on the spin-orbit-split-arrays was developed and used to determine the charge state distributions. The atomic structure code of Cowan and the spin-orbit-split-arrays model is used to calculate all the emission spectra of the different gold species, and a non-local thermodynamic eguilibrium model is coupled to calculate the ion populations and the charge state distributions at a given density and temperature. The relationship between average charge state and the electron temperature is given.In general, the avera ge charge state increases with electron temperature, except between 3800 and 390 0 eV. The reason for this unusual region is that the ionization potential increa ses much sharply between Au51 and Au52.