电子交换和质子被氢阻止
Electron swaps and the stopping of protons by hydrogen
摘要：
研究了氢阻止质子过程中电子交换的相关性。为此，使用经典轨迹蒙特卡罗方法来计算k-停止截面，即在碰撞期间发生k-交换的情况下的停止截面。据发现，电子交换可以用来标记电子轨迹，因为它似乎相当好地描述了碰撞过程中的电子-离子相互作用的程度。取决于离子能量，进入停止截面的交换的数量可以变化。在keV范围内，交换的数量可以大到五个或更多，而在更大的能量下，只有三个或更少的电子交换可能发生在与停止相关的碰撞中。
英文摘要：
The relevance of the electronic swap in the stopping process of proton by hydrogen is investigated. To this end, the Classical Trajectory Monte-Carlo method is used to calculate the k-stopping cross-section, i.e. the stopping cross-section given the occurrence of k-swaps during the collision. It is found that electron swaps can be used to label electron trajectories, as it seems to describe fairly well the extent of the electron-ion interaction during the collision. Depending on the ion energy, the number of swaps entering the stopping cross section may vary. In the keV range the number of swaps can be as large as five or more, whereas, at larger energies, only three or less electron swaps may take place in collisions of relevance to stopping.
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