跨玻尔速度能区Xe<sup>23+</sup>离子与Ne原子碰撞中的电子过程

跨玻尔速度能区Xe²³⁺离子与Ne原子碰撞中的电子过程

摘要: 本文用飞行时间符合技术实验研究了跨玻尔速度能区（入射离子速度为0.65～1.32 a.u.，a.u.为玻尔速度）高电荷态离子Xe²³⁺与Ne原子碰撞中的多电子过程，通过分析符合二维谱获得各反应道（靶原子的电子丢失、电子转移以及伴随电离的电子丢失）的相对截面，并与拓展的过垒模型及相关的经验公式进行了对比，结果与过垒模型符合相对较好。

Abstract: The time-of-flight coincidence technique was used to study multielectron reactions in collisions between Xe²³⁺ ions and Ne atoms with incident ion velocity of 0.65-1.32 a.u. The relative cross sections for several reaction channels (electron loss, charge transfer and electron loss with ionization for the target atom) were obtained by observing the final charges of the Xe ions and recoiling target ions in coincidence. The present experimental data are compared with the scaling law and the extended classical over barrier （ECB） model. It is found that the ECB model is better than the scaling law.