由较低能量的H2+离子诱导的Te L-子的X射线辐射
Jing Wei1, Xianming Zhou2,3, Rui Cheng4
1Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and IMP, CAS, Xianyang Normal University, Wenlin Rd. 01, Xianyang, 712000, Shannxi, China.
Scientific reports
|November 23, 2024
概括
研究的研究.
科学领域:
- 原子和分子物理 原子和分子物理
- 射线光谱 X射线光谱
- 材料科学 材料科学 材料科学
背景情况:
- 了解离子-原子相互作用对于各种应用至关重要.
- L-shell X射线发射提供了关于离子冲击期间电子结构变化的见解.
- 之前的研究已经探索了离子诱导的X射线辐射,但对分子离子对重元素的影响的详细分析并不常见.
研究的目的:
- 为了研究由分子离子 (H2+) 冲击引起的 (Te) 的LX射线发射.
- 分析多重外电离对X射线光谱特征的影响.
- 将实验截面与理论模型进行比较,并评估不同的原子参数数据库.
主要方法:
- 实验设置涉及H2+离子束对150-300keV的能量范围内的目标产生冲击.
- 测量和分析LX射线光谱,重点关注蓝色变化和强度比.
- 提取实验性X射线生产的横截面.
- 实验数据与理论计算的比较,包括联合原子近似和多重电离模型.
主要成果:
- 观察到L子X射线的蓝色变化和强度比 (Lι,Lβ到Lα) 的增强.
- 这些光谱变化归因于外电子的多重电离.
- 确定了实验横截面,并发现它们与能量为一半的质子的横截面相当.
- 以理论原子参数进行的ECUSAR-MI计算显示出与实验结果最一致的结果.
结论:
- 分子离子的影响导致中的多重电离显著,改变L的X射线发射特征.
- 这项研究提供了新的实验横截面数据,用于H2+诱导的X射线在中的产生.
- 具有适当原子参数的ECUSAR-MI计算在模拟这些复杂的离子-原子相互作用方面是有效的.
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