Development Upgrade of NTIMS-Mass Spectrometer

该奖项为伍兹霍尔海洋研究所地质和地球物理系1975年“自制”的热电离质谱仪的现代化提供部分资金。该机构承诺为这一仪器升级项目提供所需的剩余资金。仪器升级包括真空系统、电源、磁铁控制系统、离子检测系统和一个新的氧气泄漏阀的改装。该光谱仪系统被伍兹霍尔海洋研究所的首席研究员及其同事用于许多研究项目，这些项目需要精确的同位素分析，用于测量海水中锇同位素的时间变化，调查富有机物海洋沉积物中的锇-铼同位素系统，使用锇同位素作为海洋环境中人为金属的示踪剂。并进行基础研究，以便更好地了解影响环境中锇的地球化学行为的因素。＊＊＊

9413837 Hart This award provides partial funding for the modernization of a 1975, "home-built", thermal ionization mass spectrometer in the Department of Geology and Geophysics at the Woods Hole Oceanographic Institution. The Institution is committed to providing the remaining funds necessary for this instrument upgrade project. The instrumental upgrade includes a refit of the vacuum system, power supplies, magnet control system, ion detection system, and a new oxygen leak valve. The spectrometer system is used by the Principal Investigator and colleagues at the Woods Hole Oceanographic Institution in numerous research projects requiring accurate isotopic analyses for applications in measuring the temporal variation of osmium isotopes in sea water, investigation of the osmium-rhenium isotope systematics in organic-rich marine sediments, use of osmium isotopes as tracers of anthropogenic metals in the marine environment, and basic research for a better general understanding of the factors affecting the geochemical behavior of osmium in the environment. ***