Technician Support: EPS-TIMS Facility at Harvard

小行星9616072 这笔赠款提供128 493美元，作为哈佛大学负责监督、维护和日常操作热电离质谱设施的一名技术员的部分薪金支助。 这是一个第一阶段的技术支持赠款下的技术支持/IF技术支持子计划。 在哈佛TIMS实验室建立这一技术职位将提供所需的仪器监督和维护（哈佛有3台TIMS），由于哈佛决定增加一名额外的教员和一名研究助理，Roberta Rudnick和Paul霍夫曼的研究需要使用TIMS进行放射性同位素分析，这一工作将很快增加。技术支持还将大大促进PI在各种主题上的研究，包括基于使用负离子TIMS（N-TIMS）测量铪-钨同位素系统的地球吸积和早期历史研究，基于科马提岩和高MgO玄武岩的钕/钐和铷/锶同位素分析的地幔地球化学研究，利用N-TIMS、应用于岩石圈构造的U/Pb年代学和利用Sr同位素推断古地表过程对玄武岩中铂族元素（PGE）进行了元素分析。 ***

9616072 Jacobsen This grant provides $128,493 as partial salary support for a technician responsible for oversight, maintenance and daily operation of the thermal ionization mass spectrometry (TIMS) facility at Harvard University. This is a Phase I technician support grant under the EAR/IF technician support sub-program. Establishment of this technical position at the Harvard TIMS lab will provide needed instrumental oversight and maintenance (there are 3 TIMS at Harvard) which will soon increase as the result of Harvard's decision to add an additional faculty member and a research associate, Roberta Rudnick and Paul Hoffman, respectively, whose research requires the use of TIMS for radiogenic isotopic analyses. Technical support will also greatly facilitate the PI's research on a variety of topics including, studies of the accretion and early history of the Earth based on measurement of the Hafnium-Tungsten isotopic system using negative ion TIMS (N-TIMS), studies of mantle geochemistry based on Neodymium/Samarium and Rubidium/Strontium isotopic analyses of Komatiites and high-MgO basalts, elemental analyses of the Platinum group elements (PGE) in basalts using N-TIMS, U/Pb geochronology as applied to lithospheric tectonics and use of Sr isotopes to infer paleo-surface processes. ***