MRI: Development of a SERF Atomic Magnetometer for Paleomagnetic Applications

MRI：开发用于古地磁应用的 SERF 原子磁力计

• 批准号: 1039846
• 负责人: John Tarduno
• 金额: $ 35.84万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2016-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1039846&HistoricalAwards=false
• 关键词: MRI; Development; SERF; Atomic; Magnetometer

1039846TardunoThis Major Research Instrumentation (MRI) Program grant supports development of an ultra-sensitive (1 x 10-16 Am2) spin-exchange relaxation-free (SERF) atomic magnetometer capable of routine measurement of all three components of the remanent magnetic moment recorded in very small Archean refractory accessory phases (e.g., zircons). Should the development prove fully successful, the SERF magnetometer will allow PI Tarduno, students and collaborators to continue the search for mineral recordation of the birth of the geomagnetic field using a technology that could have up to three orders of magnitude better measurement sensitivity than currently available SQUID sensor based rock magnetometers. Assessment of the timing of onset of core formation and dynamo activity on early Earth has implications for constraining the development of the Earth?s atmosphere and the earliest possible emergence of microbial life on Earth as the magnetic field shields the Earth from the intense cosmic radiation and the solar wind. The development will be done in collaboration with a small U.S. company, Twinleaf, and will engage a graduate student. ***

1039846Tardunothis主要研究仪器（MRI）计划赠款支持开发超敏感（1 x 10-16 AM2）的自旋交换无松弛（SERF）原子磁力仪，能够常规测量在很小的小陈述式耐矩形辅助套件中记录的所有三个成分， 如果该开发项目已完全成功，那么农奴磁力计将使Pi Tarduno，学生和合作者能够使用一项技术可以比目前可用的Squid Squid传感器岩石磁力计的技术继续搜索矿物质记录。 评估核心形成和发电机活性在早期地球上的发作时间对限制地球大气的发展以及微生物生命在地球上的最早出现的意义，因为磁场屏蔽了地球免受强烈的宇宙辐射和太阳风的影响。 该开发项目将与一家小型公司Twinleaf合作完成，并将与研究生合作。 ***