Mass Spectrometer Repair and Upgrade to Ion Counting Capability

9405881赖特该合同提供了威廉·马什·赖斯大学地质和地球物理系热电离质谱计维修所需资金的一半。莱斯大学承诺提供维修所需的剩余资金。该仪器广泛用于分析测量铀-铅同位素、微量元素和锶、钕等同位素示踪剂，用于莱斯大学几名教职员工及其学生的火成岩和构造演化研究项目。在去年的研究过程中，由于真空中的不慎污染，仪器发生了灾难性的故障。维修将包括在制造商的工厂对仪器进行彻底的拆卸和清洁，并由制造商保证。***

9405881 Wright This award provides one-half of the funds required for the repair of a thermal ionization mass spectrometer operated in the Department of Geology and Geophysics at the William Marsh rice University. Rice University is committed to providing the remaining funds necessary for the repair. The instrument is heavily used in analytical measurements of uranium-lead isotopes, trace elements and isotopic tracers such as strontium and neodymium in the igneous petrology and tectonic evolution research programs of several faculty members and their students at Rice. During the course of research last year a catastrophic failure of the instrument occurred after inadvertent contamination inside the vacuum. The repair will include thorough disassembly and cleaning of the instrument at the manufacturer's factory and will be guaranteed by the manufacturer. ***