Upgrading of the Linear-type Pulsed-Laser-Time-of-Flight Atom Probe Field Ion Microscopes

线性脉冲激光飞行时间原子探针场离子显微镜的升级

• 批准号: 8914935
• 负责人: Tien Tsong
• 金额: $ 22.4万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-01 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8914935&HistoricalAwards=false
• 关键词: Upgrading; Linear; type; Pulsed; Laser

Linear-type Pulsed Laser Time-of-Flight Atom Probe FIM is a mass and ion kinetic energy analyzer with sensitivity to detect single ions. It can be used for the chemical analysis of solid surfaces, atomic layer by atomic layer, and can also be used to measure ion kinetic energy distributions. It has a resolution of 1 to 2 parts in 100,000 and a time resolution of better than 20 fs in ion reaction rate measurements. It has been used for atomic scale surface and interface compositional analysis of various materials, and to study atomic and cluster ion formation in stimulated desorptions, gas-surface interactions, and ion reactions, etc. It is a unique prototype system.

线性型脉冲激光飞行时间原子探针FIM是一种质量和离子动能分析仪，能够灵敏地检测单个离子。 它可用于固体表面、原子层的化学分析，也可用于测量离子动能分布。 在离子反应速率测量中，其分辨率为十万分之一至二分之一，时间分辨率优于 20 fs。 它已用于各种材料的原子尺度表面和界面成分分析，并研究受激解吸、气体-表面相互作用和离子反应等中原子和簇离子的形成，是一个独特的原型系统。