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Volume 2, Issue 6
Emissivity Calculations Under DCA-UTA Approximation for NLTE Plasmas

J. Q. Pang, Z. Q. Wu & J. Yan

Commun. Comput. Phys., 2 (2007), pp. 1085-1094.

Published online: 2007-02

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  • Abstract

A model is developed to calculate emission spectrum from plasmas in non-local-thermodynamic-equilibrium (NLTE). The populations are obtained with a Collisional Radiative Model and the spectrum is calculated with the Unresolved-Transition-Array (UTA) approximation. The present model is applied to the calculation of emissivity from low-, medium- and high-Z plasmas. The integrated emissivity and the spectra are compared with those calculated by other theoretical models. In general speaking, the present results of the mean charge state and emissivity agree well with some theoretical ones while large differences are found when all the theoretical results are included.

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@Article{CiCP-2-1085, author = {}, title = {Emissivity Calculations Under DCA-UTA Approximation for NLTE Plasmas}, journal = {Communications in Computational Physics}, year = {2007}, volume = {2}, number = {6}, pages = {1085--1094}, abstract = {

A model is developed to calculate emission spectrum from plasmas in non-local-thermodynamic-equilibrium (NLTE). The populations are obtained with a Collisional Radiative Model and the spectrum is calculated with the Unresolved-Transition-Array (UTA) approximation. The present model is applied to the calculation of emissivity from low-, medium- and high-Z plasmas. The integrated emissivity and the spectra are compared with those calculated by other theoretical models. In general speaking, the present results of the mean charge state and emissivity agree well with some theoretical ones while large differences are found when all the theoretical results are included.

}, issn = {1991-7120}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/cicp/7940.html} }
TY - JOUR T1 - Emissivity Calculations Under DCA-UTA Approximation for NLTE Plasmas JO - Communications in Computational Physics VL - 6 SP - 1085 EP - 1094 PY - 2007 DA - 2007/02 SN - 2 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/cicp/7940.html KW - AB -

A model is developed to calculate emission spectrum from plasmas in non-local-thermodynamic-equilibrium (NLTE). The populations are obtained with a Collisional Radiative Model and the spectrum is calculated with the Unresolved-Transition-Array (UTA) approximation. The present model is applied to the calculation of emissivity from low-, medium- and high-Z plasmas. The integrated emissivity and the spectra are compared with those calculated by other theoretical models. In general speaking, the present results of the mean charge state and emissivity agree well with some theoretical ones while large differences are found when all the theoretical results are included.

J. Q. Pang, Z. Q. Wu & J. Yan. (2020). Emissivity Calculations Under DCA-UTA Approximation for NLTE Plasmas. Communications in Computational Physics. 2 (6). 1085-1094. doi:
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