On radiative power from impurities in plasmas
On radiative power from impurities in plasmas
复制标题
关于等离子体中杂质的辐射功率
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
M. B. Hooper
中科院分区：
文献类型：
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作者：
H. Summers;M. B. Hooper
总结了由于杂质离子场中的电子跃迁而导致的光学薄高温等离子体中的辐射功率损失的过程。回顾了由这些不同的辐射损耗机制产生的净功率的理论计算，并提出了辐射功率频率分布的理论。然后讨论电离动态状态下元素的辐射功率损失的描述。当前碰撞辐射理论的正式推广是为了一致地适应低亚稳态水平。这被建议作为最可靠的功率损耗计算的基础。简要回顾了重要的碰撞双电子复合和电离系数的实际计算状况，并为亚稳态推广的实际实施提出了建议。给出了功率损耗系数和函数以及重要的中间量的说明性示例。
Processes for radiative power loss in optically thin high temperature plasmas due to electronic transitions in the field of an impurity ion are summarised. The theoretical calculation of the net power arising from these various radiative loss mechanisms is reviewed and a theory for the frequency distribution of radiated power presented. The description of radiative power loss from elements in dynamic states of ionisation is then addressed. Formal generalisation of current collisional-radiative theory is made to accomodate low metastable levels consistently. This is proposed as the basis for the most reliable power loss calculations. The state of practical calculations of the important collisional-dielectronic recombination and ionisation coefficients is briefly reviewed and suggestions made for the practical implementation of the metastable generalisation. Illustrative examples are given of power loss coefficients and functions, together with important intermediate quantities.