Collisions of Ions and X-Rays with Atoms, Molecules, and Solids (Physics)

这项工作包括七个基于加速器的原子物理实验和几个平行的理论研究项目，涉及高速，高电离射体与目标原子，分子和固体的碰撞，以及X射线与原子和分子的碰撞。实验工作将由一组大学用户在ORNL的加速器设施中进行；斯坦福大学(SSRL);BNL (NSLS);康奈尔大学 ( 国际象棋);Frankfurt-Darmstadt (GSI);卡昂（GANIL）。具体研究课题包括：(1)反冲离子电荷卫星的振荡和振荡电子相关效应研究；(2)分子断裂过程中电子共享和能量分布的研究；(3)低能电荷向多电荷离子转移的研究；(4)弹丸中心连续态的电子捕获和损失研究；(5) 15 ~ 35mev /u的重离子穿过固体产生电子；(6)双激发He靶自电离幅值干扰；(7)快速、高荷电态弹丸撞击气体目标产生的低能、高荷电反冲离子；(8)俄歇电子与离子的电子撞击电离重合。

This work incorporates seven accelerator-based atomic physics experiments and several parallel theoretical research projects concerning collisions of high-velocity, highly ionized projectiles with target atoms, molecules, and solids, and of X rays with atoms and molecules. The experimental work is to be carried out by a group of university users at accelerator facilities at ORNL; Stanford (SSRL); BNL (NSLS); Cornell (CHESS); Frankfurt-Darmstadt (GSI); and Caen (GANIL). Specific topics of investigation include: (1) the study of shake-up and shake-off electron correlation effects on recoil ion charge satellites; (2) the study of electron sharing and energy distributions in molecular fragmentation; (3) the study of low energy charge transfer to multiply charged ions; (4) studies of electron capture and loss to projectile-centered continuum states; (5) electron production by 15 to 35 MeV/u heavy ions traversing solids; (6) interference of amplitudes for autoionization of doubly excited He targets; (7) low energy, highly charged recoil ions produced by impact of fast, high charge state projectiles on gas targets; and (8) Auger electrons in coincidence with electron impact ionization of ions.