Acquisition of a Thermal Ionization Mass Spectrometer for Studies in the Solid Earth and Planetary Sciences

0320589卡尔森这笔赠款用于支持卡内基地磁学系（DTM）购买最先进的热电离质谱仪（TIMS），用于地球和行星科学的同位素研究。 新仪器将取代18年前的VG-354，后者仍在运行，但缺乏对地球化学研究中感兴趣的一些放射性同位素（如Os，Nd，Sr）进行最高精度测量的能力。 新的TIMS将补充DTM的两台多接收器ICP-MS仪器，这两台仪器用于需要高精度微量元素和同位素数据的众多地球化学研究项目。 新的TIMS将用于固体地球早期演化、地核形成时间、地幔化学动力学和火成岩成因的同位素研究。 该仪器还将通过CIW-DTM博士后项目培训下一代精通仪器的同位素地球化学家。*

0320589CarlsonThis grants provide support for acquisition of a state-of-the-art thermal ionization mass spectrometer (TIMS) to be used for isotopic research in the earth and planetary sciences at Carnegie's Department of Terrestrial Magnetism (DTM). The new instrument will supercede an 18-yr old VG-354 that is still functioning but lacks the capability for the highest precision measurement of a number of radiogenic isotopes of interest for geochemical research (e.g. Os, Nd, Sr). The new TIMS will complement two multi-collector ICP-MS instruments at DTM that are employed in a multitude of geochemical research projects requiring high precision trace element and isotopic data. The new TIMS will be used for isotopic research on the early evolution of the solid earth, timing of core formation, studies in mantle chemical dynamics and igneous petrogenesis. The instrument will also serve to train the next generation of instrument-savvy isotope geochemists through the CIW-DTM postdoc program.***