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

离子和 X 射线与原子、分子和固体的碰撞（物理学）

• 批准号: 8806705
• 负责人: Stuart Elston
• 金额: $ 87.79万
• 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: 1988
• 资助国家: 美国
• 起止时间: 1988-06-15 至 1992-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8806705&HistoricalAwards=false
• 关键词: Collisions; Ions; Rays; Atoms; Molecules

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.

这项工作包括七个基于加速器的原子 物理实验和若干平行理论研究 关于高速、高度电离 以原子、分子和固体为目标的射弹，以及X 射线与原子和分子。 实验工作将在 由一群大学用户在加速器上进行， ORNL、斯坦福大学（SSRL）、BNL（NSLS）、康奈尔大学的设施 （国际象棋）;法兰克福-达姆施塔特（GSI）;和卡昂（GANIL）。 具体 调查的主题包括：（1）研究改组和 电子相关效应对反冲离子电荷影响 卫星;（2）电子共享和能量的研究 （3）低分子量的分子碎片的研究; 能量电荷转移到多电荷离子;（4）研究 电子俘获和向射弹中心连续区的损失 15 ~ 35 MeV/u重离子产生电子 （6）振幅的干涉， 双激发He靶的自电离;（7）低能量， 高电荷反冲离子产生的快速，高 气体靶上的荷电状态射弹;（8）俄歇 与电子碰撞电离重合的电子 离子。