Engineering Support for Mass Spectrometer Development

该奖项将提供两年的工资支持， 拉蒙特-多尔蒂地质观测站博士后研究员 来自哥伦比亚大学。研究助理将被雇用 全职开发分析技术， 一种新型的质谱分析系统， 质量分析仪部分，高分辨率，高丰度 灵敏度和激光的高透射特性 共振电离和溅射源能力， 多个可调离子计数倍增器组件。 仪器的属性（美国新产品）将 使美国地球科学家能够进行各种类型的同位素 具有重要地球化学意义但 由于分析的局限性，迄今为止尚未解决。这些 包括测量锇和钍的同位素比率， 来自大洋和大陆地壳的岩石和矿物。

This award will provide two year's of salary support for a postdoctoral associate at Lamont-Doherty Geological Observatory of Columbia University. The research associate will be employed full-time in the development of analytical techniques utilizing a new type of mass spectrometry system that combines a magnetic mass analyzer section, high-resolution, high-abundance sensitivity, and high-transmission characteristics with laser resonance ionization and sputtered source capabilities and with a multiple adjustable ion-counting multiplier assembly. The attributes of the instrument (new to the U.S.) will enable U.S. earth scientists to undertake types of isotopic analyses which are geochemically important but which have not been tackled to date because of analytical limitations. These include the measurements of osmium and thorium isotope ratios in rocks and minerals from the oceanic and continental crust.