A general framework for photoionization rate calculations in a constant pressure gaseous medium is introduced. The formulation includes the number of photons emitted per unit volume per unit time per unit wavelength due to a radiating source, photobasorption cross sections and density of species comprising the medium, and the photoionization probability (i.e. photoionization yield) of the species being photoionized. We derive a standard integral representation of the photoionization problem that may be readily converted to a set of Helmholtz differential equations for efficient calculation of the photoionization rate. The model is applied to the photoionization problem in air in which ##IMG## [http://ej.iop.org/images/0963-0252/28/10/105006/psstab4374ieqn1.gif] {${b}^{1}{{\rm{\Pi }}}_{u}$} , ##IMG## [http://ej.iop.org/images/0963-0252/28/10/105006/psstab4374ieqn2.gif] {${{b}^{{\prime} }}^{1}{{\rm{\Sigma }}}_{u}^{+}$} , ##IMG##

中文翻译：

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应用于空气中非热气体排放的光电离计算的通用框架

介绍了恒压气态介质中光电离速率计算的一般框架。该配方包括由于辐射源引起的单位时间内每单位时间每单位体积发射的光子数，光吸收截面和组成介质的物质的密度，以及被电离的物质的电离概率（即光离产率）。我们推导了光电离问题的标准积分表示形式，可以很容易地将其转换为一组Helmholtz微分方程，以高效地计算光电离率。该模型适用于空气中的光电离问题，其中## IMG ## [http://ej.iop.org/images/0963-0252/28/10/105006/psstab4374ieqn1.gif] {$ {b} ^ {1} {{\ rm {\ Pi}}} _ {u} $}，## IMG ## [http：//ej.iop。