Collaborative Research: Development of a turnkey SQUID microscope platform for paleomagnetism and installation in a National Multi-User Facility

合作研究：开发用于古地磁学的交钥匙 SQUID 显微镜平台并安装在国家多用户设施中

• 批准号: 1905733
• 负责人: Eduardo Andrade Lima
• 金额: $ 41.36万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-15 至 2024-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1905733&HistoricalAwards=false
• 关键词: Collaborative; Research; Development; turnkey; SQUID

Rocks preserve important records of ancient geomagnetic fields. However, some records have remained inaccessible due to complex magnetic histories and mineralogy. The main goals of this collaborative project are to develop and build a magnetic microscope at MIT to measure paleomagnetic records in Earth rocks and other geological samples and to upgrade a second instrument at Caltech to enable these measurements. These will share a common platform that will expand paleomagnetic research opportunities nationally and enable independently verifying results. In addition, details of the platform will be disseminated to the scientific community to enable a broad range of applications.Many rocks that might preserve important records of ancient geomagnetic fields have remained inaccessible due to a combination of intricate magnetic histories and complex mineralogies. The main goals of this collaborative project are to develop and build a new Scanning Superconducting QUantum Interference Device (SQUID) Microscope (SSM) platform at MIT to measure paleomagnetic records in Earth rocks and other geological samples and to upgrade a second instrument at Caltech to enable these measurements. These will share a common platform that will allow for conducting multiple research projects from different research groups concurrently and for independently verifying results. In addition, details of the platform will be disseminated to the scientific community to enable a broad range of applications. This new SSM will have a unique combination of capabilities, which include cryogen-free operation for lower costs and long uninterrupted use, magnetic moment sensitivity of better than 1x10^-15 Am2, and spatial resolution of 100 micrometers. It will map the component of the magnetic field normal to the sample plane in a grid of positions with area up to 50 mm x 50 mm and with scanning speed of up to 5 mm/s.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

岩石保留了古代地磁领域的重要记录。但是，由于复杂的磁历史和矿物学，一些记录仍然无法访问。该协作项目的主要目标是在麻省理工学院开发和建立一个磁显微镜，以测量地球岩石和其他地质样本中的古磁记录，并在加州理工学院升级第二个仪器以启用这些测量。这些将共享一个共同的平台，该平台将在全国范围内扩大古磁研究机会，并能够独立验证结果。此外，该平台的细节将被传播到科学界以实现广泛的应用。由于复杂的磁性历史和复杂的矿物学的结合，可能保留古代地磁领域重要记录的许多岩石仍然无法访问。该协作项目的主要目标是在MIT开发和建立新的扫描超导量子干扰设备（SQUID）显微镜（SSM）平台，以测量地球岩石和其他地质样本中的古磁记录，并在Caltech上升级第二个仪器，以启用这些测量值。这些将共享一个共同的平台，该平台将允许同时进行不同研究小组的多个研究项目，并独立验证结果。此外，该平台的详细信息将被传播到科学界，以实现广泛的应用程序。这种新的SSM将具有独特的功能组合，其中包括无低温操作，用于较低的成本和长期不间断的使用，磁矩灵敏度优于1x10^-15 AM2，以及100微米的空间分辨率。它将在磁场的组件上绘制近期磁场的组件，并在面积高达50 mm x 50 mm的位置上绘制样品平面，并且扫描速度高达5 mm/s.，该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的审查标准来通过评估来获得支持的。