Ionization differential cross section measurements for H2, D2 and HD at low energies
Ionization differential cross section measurements for H2, D2 and HD at low energies
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低能量下 H2、D2 和 HD 的电离微分截面测量
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
A. Murray
中科院分区：
文献类型：
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作者：
A. Murray
在以前的调查中，电离三重微分截面（TDCS）确定为最简单的中性分子H2的散射几何形状的范围内，从共面到垂直平面，在入射能量20 eV以上的电离电位（IP）。将这些数据与现有技术的理论计算进行比较，发现了尚未解决的显著差异。为了进一步这项研究，新的数据在这里提出的入射能量从10至50 eV以上的IP为H2。将这些数据与D2和HD的电离数据进行比较，以确定核结构或分子对称性是否在碰撞中起作用。在不同同位素物种的测量中没有观察到显著差异。还提出了在相同操作条件下与N2的TDCS的比较，以对比这些目标之间的差异。
In a previous investigation, ionization triple differential cross sections (TDCS) were determined for the simplest neutral molecule H2 over a range of scattering geometries from coplanar to the perpendicular plane, at an incident energy 20 eV above the ionization potential (IP). These data were compared to state of the art theoretical calculations, and significant discrepancies were found that have yet to be resolved. To further this study, new data are presented here for incident energies from 10 to 50 eV above the IP for H2. These are compared to data for ionization of D2 and HD, to establish if either the nuclear structure or molecular symmetry plays a role in the collision. No significant differences were observed in the measurements from different isotopic species. A comparison with the TDCS from N2 under the same operating conditions is also presented, to contrast differences between these targets.