相关实验视频
Updated: Jul 19, 2025

10:42
Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
Published on: May 3, 2019
6.8K
更新了阿克的前三种光谱的原子数据
1National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
概括
这项研究重新分析了actinium (Ac I-III) 的光谱数据,精炼能量水平和光谱线. 计算了新的过渡概率,为这些原子谱提供了推数据.
科学领域:
- 原子物理 原子物理
- 频谱学是一种光谱学.
- 量子力学就是量子力学.
背景情况:
- (Ac) 是一种罕见的放射性元素,具有复杂的原子谱.
- 准确的光谱数据对于理解原子结构和天体物理应用至关重要.
- 之前对动光谱 (Ac I-III) 的研究在数据的完整性和准确性方面存在局限性.
研究的目的:
- 对所有公布的光谱线和能量水平数据进行全面的重新分析.
- 建立对能量水平,光谱线和Ac I,Ac II和Ac III的过渡概率进行批判性评估的数据集.
- 为了提高基本的原子数据的准确性为actinium.
主要方法:
- 重新分析了所有公布的观察到的光谱线和能量水平数据.
- 对现有的能量水平,J值和分类进行批判性评估和修订.
- 确定新的能量水平和光谱线分类.
- 为Ac I和Ac II计算新的过渡概率.
- 重新确定动态的电离能.
主要成果:
- 在Ac I:确定了12个新的能量水平,3个被拒绝,6个修订;发现了16个新的光谱线分类,3个修订. 电离能得到了改善.
- 在Ac II:建立了16个新的能量级别,36个新的线路标识.
- 为Ac I和Ac II计算出新的过渡概率集.
- 关于能量水平,线条和过渡概率的完整,经过批判性评估的数据集,为Ac I-III.编制.
结论:
- 重新分析显著提高了动光谱数据的准确性和完整性.
- 生成的推数据集为原子物理研究提供了可靠的资源.
- 这项工作有助于我们更好地了解阿克的原子结构和属性.
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