Acquisition of a Cryogenic Magnetometer

获取低温磁力计

• 批准号: 9520528
• 负责人: Laurie Brown
• 金额: $ 6.75万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9520528&HistoricalAwards=false
• 关键词: Acquisition; Cryogenic; Magnetometer

9520528 Brown Research in the Paleomagnetic Laboratory at the University of Massachusetts has been underway for the last twenty years, with emphasis on studies of the paleosecular variation of the Earth's magnetic field and on the solution of geologic problems using paleo-magnetism. Current and past research have been done using measurements from a spinner magnetometer. With the increasing numbers of samples needed for both paleosecular variation and tectonic studies, and the detailed demagnetization steps required with current standards, measurements such as these are a lengthy process. This grant provide funds for the acquisition of a cryogenic magnetometer that will allow for the accurate processing of weakly magnetized sediment samples, as well as radically decrease measurement times. The active Quaternary research group at the University of Massachusetts will now have a paleomagnetic laboratory that is capable of competitive research into paleosecular variation studies on recent sediments and paleoclimatic studies of weakly magnetized materials. The new instrument will also benefit a larger, five-college Quaternary Research Group composed of faculty from Amherst, Hampshire, Mount Holyoke and Smith as well as the host institution. ***

9520528马萨诸塞大学古地磁实验室的布朗研究在过去的二十年里一直在进行，重点是研究地球磁场的古分子变化和利用古磁学解决地质问题。目前和过去的研究都是使用旋转磁力仪的测量结果来完成的。随着古分子变化和构造研究所需的样品数量不断增加，以及当前标准所需的详细退磁步骤，这样的测量是一个漫长的过程。这笔赠款为购置低温磁强计提供了资金，使之能够准确处理弱磁化的沉积物样品，并从根本上减少测量时间。马萨诸塞大学活跃的第四纪研究小组现在将拥有一个古地磁实验室，能够对现代沉积物的古分子变化研究和弱磁化物质的古气候研究进行竞争性研究。新仪器还将使一个更大的、由五所学院组成的第四纪研究小组受益，该小组由来自阿默斯特、汉普郡、芒特霍利奥克和史密斯的教师以及主办机构组成。***