从N2O对冲击能量从1到1000eV的整数电子散射截面
Ana I Lozano1,2,3, Jaime Rosado4, Francisco Blanco4
1Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 113-bis, 28006 Madrid, Spain.
The journal of physical chemistry. A
|January 16, 2024
概括
对氧化 (N2O) 分子的精确电子散射总截面 (TCS) 测量为1到1000 eV. 这些数据为辐射传输模型提供了一个更可靠的N2O碰撞数据库.
科学领域:
- 原子和分子物理 原子和分子物理
- 化学物理 化学物理
- 辐射物理 辐射物理
背景情况:
- 精确的电子散射截面对于模拟辐射传输至关重要.
- 氧化 (N2O) 是各种大气和工业应用中感兴趣的分子.
- 现有的N2O电子散射数据库可能缺乏足够的精度或能量范围.
研究的目的:
- 为了准确测量N2O分子对电子散射的总截面 (TCS).
- 开发一个电子-N2O散射横截面的全面和一致的数据库.
- 提高涉及N2O的辐射诱导运输模型的准确性.
主要方法:
- 使用磁性封闭的电子传输装置 (1-200 eV) 测量TCS的实验测量.
- 理论计算使用独立的基于原子的选纠正的附加性规则,包括干扰 (IAM-SCAR + I) 方法 (高达1000 eV).
- 对弹性和不弹性横截面的现有文献数据进行批判性分析和一致性检查.
主要成果:
- 通过N2O获得精确的TCS电子散射数据,精度为5%.
- 建立了一个完整的参考TCS数据集,用于1-1000 eV的能量范围.
- 获得了整体弹性和不弹性截面 (旋转,振动,电子激发,电离,电子附着) 的一致集.
结论:
- 这项研究为电子-N2O相互作用提供了更新和可靠的碰撞数据库.
- 由此得出的截面与精确的TCS测量结果一致.
- 这种增强的数据库预计将提高涉及N2O的辐射传输模拟的精度.
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