Emissivity Calculations Under DCA-UTA Approximation for NLTE Plasmas

作     者：J.Q.Pang Z.Q.Wu J.Yan 

作者机构：Institute of Applied Physics and Computational MathematicsLaboratory of Computational PhysicsP.O.Box 8009-57Beijing 100088China. 

出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)

年 卷 期：2007年第2卷第6期

页      面：1085-1094页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：supported by the National Basic Research Program(No.2005CB724500) National Natural Science Foundation of China(Grant Nos.10674021 and 10604011) the Science and Technology Funds of Chinese Academy of Engineering Physics(Grant Nos.20050215 and 20060215) 

主　　题：Non-local-thermodynamic-equilibrium(NLTE) emissivity Unresolved-TransitionArray(UTA). 

摘      要：A model is developed to calculate emission spectrum from plasmas in nonlocal-thermodynamic-equilibrium(NLTE).The populations are obtained with a Collisional Radiative Model and the spectrum is calculated with the Unresolved-TransitionArray(UTA)*** present model is applied to the calculation of emissivity from low-,medium-and high-Z *** integrated emissivity and the spectra are compared with those calculated by other theoretical *** 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.