Acquisition of a High Power Laser for Resonance Ionization Mass Spectrometry

该奖项提供部分资金，以转换现有的 9.英寸磁扇形质谱仪到仪器中， 使用共振电离，并结合同时多个 用电子倍增器进行同位素检测。转换将 建立在一个激光共振电离系统开发的， 国家标准局。开发、安装和 该文书的运作将在该部进行， 华盛顿卡内基研究所地磁学。 新系统将允许测量Re.Os同位素 系统的精度和灵敏度高于 目前，它的成功开发将为 同位素地球化学的重要新研究能力 研究社区。由于地球化学行为的 Re.Os系统，其研究提供了关于 地壳、地幔和地核的演化。

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.