Acquisition of a High Power Laser for Resonance Ionization Mass Spectrometry

获取用于共振电离质谱分析的高功率激光器

• 批准号: 8720836
• 负责人: Louis Brown
• 金额: $ 8万
• 依托单位: Carnegie Institution of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-03-01 至 1989-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8720836&HistoricalAwards=false
• 关键词: Acquisition; Power; Laser; Resonance; Ionization

This award provides partial funding to convert an existing 9.inch magnetic sector mass spectrometer into an instrument that uses resonance ionization and incorporates simultaneous multiple isotope detection with electron multipliers. The conversion will build on a laser resonance ionization system developed at the National Bureau of Standards. Development, installation and operation of the instrument will take place at the Department of Terrestrial Magnetism of the Carnegie Institution of Washington. The new system will allow measurements of the Re.Os isotope system at higher levels of precision and sensitivity than possible at present, and its successful development will provide important new research capabilities for the isotope geochemistry research community. Because of the geochemical behavior of the Re.Os system its study provides unique information on the evolution of the Earth's crust, mantle and core.

该奖项提供部分资金，用于将现有的 9. 英寸扇形磁质谱仪改造为使用共振电离并结合电子倍增器同时进行多同位素检测的仪器。该转换将建立在国家标准局开发的激光共振电离系统的基础上。该仪器的开发、安装和操作将在华盛顿卡内基研究所地磁学系进行。 新系统将能够以比目前更高的精度和灵敏度测量铼锇同位素系统，其成功开发将为同位素地球化学研究界提供重要的新研究能力。由于 Re.Os 系统的地球化学行为，其研究提供了有关地壳、地幔和地核演化的独特信息。