快射弹与分子碰撞中的电子损失
Electron loss of fast projectiles in the collisions with molecules
摘要：
用非微扰方法研究了快高电荷态射弹与中性分子碰撞中的单电子和多电子损失。计算了碰撞系统$Fe^{q+}\to N_2$（$q$ =24，25，26）在碰撞能量为10，100和1000 MeV/u时的单电子、双电子和三电子损失截面。讨论了碰撞多重数和靶分子轴的取向所引起的影响。结果表明，碰撞多重数效应对分子轴垂直于抛体运动方向和平行于弹体运动方向的取向有很大影响，而对混沌取向的影响可以忽略不计.
英文摘要：
The single and multiple electron loss of fast highly charged projectiles in the collisions with neutral molecules are studied within the framework of a nonperturbative approach. The cross sections for single, double, and triple electron losses are calculated for the collision system $Fe^{q+}\to N_2$ ($q$=24, 25, 26) at the collision energies 10, 100, and 1000 MeV/u. The effects caused by the collision multiplicity and the orientation of the axis of target molecule are treated. It is shown that collision multiplicity effect leads to considerable differences for the cases of perpendicular and parallel orientations of the molecular axes with respect to the direction of the projectile motion, while for chaotic orientation such effect is negligible.
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