碰撞辐射程序中位形平均的各种有效性准则
On various validity criteria for the configuration average in collisional-radiative codes
摘要：
非局部热平衡等离子体的表征需要使用碰撞辐射动力学方程。这导致了大型线性系统的解决方案，其中统计处理，如配置平均可以带来相当大的简化。为了检查这个过程的有效性，一个标准的基础上比较的部分速率系统和Saha-Boltzmann解决方案在这里详细讨论。几种形式的这个标准进行了讨论。这些变量的有趣之处在于，它们涉及每种类型的相关跃迁（碰撞或辐射），这使得人们可以分别检查这些过程中的每一个对构型平均有效性的影响。碳和氖等离子体中的电荷分布分析的方法说明。最后，它表明，当每个布居组态的能量色散小于电子热能，建议的标准是满足其每一种形式。
英文摘要：
The characterization of out-of-local-thermal-equilibrium plasmas requires the use of collisional-radiative kinetic equations. This leads to the solution of large linear systems, for which statistical treatments such as configuration average may bring considerable simplification. In order to check the validity of this procedure, a criterion based on the comparison between a partial-rate systems and the Saha-Boltzmann solution is discussed in detail here. Several forms of this criterion are discussed. The interest of these variants is that they involve each type of relevant transition (collisional or radiative), which allows one to check separately the influence of each of these processes on the configuration-average validity. The method is illustrated by a charge-distribution analysis in carbon and neon plasmas. Finally, it is demonstrated that when the energy dispersion of every populated configuration is smaller than the electron thermal energy, the proposed criterion is fulfilled in each of its forms.
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