CHIANTI - An atomic database for emission lines. Version 8
CHIANTI - An atomic database for emission lines. Version 8
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DOI：
10.1051/0004-6361/201526827
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发表时间：
2015-10-01
影响因子：
6.5
通讯作者：
Mason, H. E.
中科院分区：
文献类型：
--
作者：
Del Zanna, G.;Dere, K. P.;Mason, H. E.
我们介绍了CHIANTI数据库的第8版。该版本包括大量新的数据和离子，这代表了软X射线，极紫外（EUV）和紫外光谱区域的显着改进，目前有几个空间任务覆盖。中性和低电荷状态的新数据也被添加。的数据进行评估，但为了改善低温等离子体的建模的有效碰撞强度为大多数新的数据集不像以前那样样条拟合，但保留计算。这需要更改CHIANTI电子激发文件的格式。能源文件的格式也已改变。对于大多数新数据集，所有水平之间的激发率都被保留，因此这些数据原则上可以用于模拟高密度等离子体。此外，CHIANTI软件中使用的差分排放测量计算方法也发生了变化。
We present version 8 of the CHIANTI database. This version includes a large amount of new data and ions, which represent a significant improvement in the soft X-ray, extreme UV (EUV) and UV spectral regions, which several space missions currently cover. New data for neutrals and low charge states are also added. The data are assessed, but to improve the modelling of low-temperature plasma the effective collision strengths for most of the new datasets are not spline-fitted as previously, but are retained as calculated. This required a change of the format of the CHIANTI electron excitation files. The format of the energy files has also been changed. Excitation rates between all the levels are retained for most of the new datasets, so the data can in principle be used to model high-density plasma. In addition, the method for computing the differential emission measure used in the CHIANTI software has been changed.