LiDB is a database of molecular radiative lifetimes (Owens et al., 2023), created to aid in the modelling of radiative effects in low-temperature plasmas. Here, we report the addition of atomic radiative lifetimes to LiDB. Datasets are generated for neutral and singly-charged atomic species based on energy levels, transitions, and transition probabilities extracted from the National Institute of Standards and Technology (NIST) Atomic Spectra Database (ASD). The main data output of LiDB is radiative lifetimes of atomic states defined uniquely by atomic term symbols and electronic configurations. The effects of the total angular momentum quantum number J on the lifetimes are averaged over using an atomic state lumping procedure. LiDB also provides partial lifetimes which yield information on the dominant radiative decay channels from each state. Datasets are available for 35 neutral and 19 singly-charged atoms with new species to be added in the future. LiDB is freely available at www.exomol.com/lidb where users can dynamically view atomic and molecular datasets or use an application programming interface (API) to request data.

中文翻译：

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LiDB：等离子体过程的原子辐射寿命数据库


LiDB 是一个分子辐射寿命数据库（Owens et al.， 2023），旨在帮助模拟低温等离子体中的辐射效应。在这里，我们报告了 LiDB 中增加的原子辐射寿命。根据从美国国家标准与技术研究院 （NIST） 原子光谱数据库 （ASD） 中提取的能级、跃迁和跃迁概率，为中性和单电荷原子种类生成数据集。LiDB 的主要数据输出是由原子项符号和电子构型唯一定义的原子态的辐射寿命。总角动量量子数 J 对寿命的影响使用原子态集总程序进行平均。LiDB 还提供部分生命周期，可生成来自每种状态的主要辐射衰减通道的信息。数据集可用于 35 个中性原子和 19 个单电荷原子，未来将添加新物种。LiDB 在 www.exomol.com/lidb 上免费提供，用户可以动态查看原子和分子数据集或使用应用程序编程接口 （API） 来请求数据。