Parametrization of electron-impact ionization cross sections from laser-excited and aligned atoms.
Parametrization of electron-impact ionization cross sections from laser-excited and aligned atoms.
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激光激发和排列原子的电子碰撞电离截面的参数化。
DOI：
10.1103/physrevlett.112.023202
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发表时间：
2014
影响因子：
8.6
通讯作者：
Nixon KL
中科院分区：
文献类型：
--
作者：
Nixon KL
本文报道了一组描述激光对准原子的电子碰撞电离的参数，这些参数定义了四重微分截面(QDC)的“长度”、“宽度”和“方向”，作为固定的入射电子动量和出射动量的目标对准的函数。这些参数是从30°到30°的角度范围内导出的。然后为所有人确定QDC。这些参数对角度非常敏感，当长宽比变化超过一个数量级时，QDCS的方向变化超过90°。
A set of parameters describing electron-impact ionization from laser-aligned atoms are reported, which define the “length”, “width”, and “direction” of the quadruple differential cross section (QDCS) as a function of target alignmentfor fixed ingoing electron momentumand outgoing momenta,.was used, with,,, andin the same plane. The parameters are derived for a range ofangles, withset at 30° to. The QDCS is then determined for all. The parameters are very angle sensitive, the QDCS direction varying more than 90° as the length to width ratio varied more than an order of magnitude.