Multiple Coincidence Experiments in Fast Ion-Atom Collisions(Physics)

快离子原子碰撞中的多重符合实验（物理）

• 批准号: 8711061
• 负责人: Marianne Breinig
• 金额: $ 5万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-06-15 至 1989-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8711061&HistoricalAwards=false
• 关键词: Multiple; Coincidence; Experiments; Fast; Ion

The research capabilities of this group will be expanded by constructing and testing apparatus which, in conjunction with existing equipment, will allow the simultaneous measurement of the charge state of a target recoil ion, the velocity distribution of one or more free electrons, the projectile charge state and its energy loss in a fast ion atom collision. Such a collision will be (nearly) completely characterized by measuring the energy loss and charge state of a projectile ion, which has produced a high electron moving with near zero velocity in the projectile rest frame. In addition, the formation of three body final states just above the dissociation limit will be explored under various collision conditions by detecting two electrons moving near zero velocity in the projectile rest frame. The outcome of these experiments will determine if experiments exploring threshold laws in fast ion atom collisions are feasible. This work will help elucidate basic phenomena in atomic collisions.

这个小组的研究能力将得到扩大 通过构造和测试设备， 与现有的设备，将允许同时 测量目标反冲离子的电荷状态， 一个或多个自由电子的速度分布， 快离子原子的射弹电荷态及其能量损失 碰撞 这样的碰撞将（几乎）完全 其特征在于，通过测量能量损失和电荷状态， 一种抛射离子，它产生了一个高电子运动， 在抛射体静止坐标系中速度接近于零。 在 此外，形成三个机构的最后状态， 探讨了各种碰撞下解离极限 通过检测两个接近零速度运动的电子的条件 在射弹架上 这些实验的结果 将决定是否实验探索阈值法律在快速 离子原子碰撞是可行的。 这项工作将有助于 阐明原子碰撞的基本现象。