Precision magnetometry

精密磁力测量

• 批准号: 174293377
• 负责人: Dr. Georg Bison
• 金额: --
• 依托单位: Paul Scherrer Institut (PSI)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/174293377?language=en
• 关键词: Precision; magnetometry

The required stability of magnetic fields for low field magnetic resonance experiments and biomagnetic measurements requires the development of precise magnetometers. The goal of this project is to build a miniaturized atomic Cs magnetometer. For that we will set up robust and compact sensor heads and an optimized electronic and laser unit. Using a new laser and polarization maintaining monomode fibers we will try to increase the amplitude and frequency stability of the light and reduce the magnetometer noise by an order of magnitude. This will be verified in measurements of the base line drift in typical magnetic fields. The improved system shall be used for biomagnetic measurements in the shielded room BMSR-2 at PTB Berlin.

为满足低场磁共振实验和生物磁学测量所需的磁场稳定性，需要开发精密磁力计。该项目的目标是建造一台小型化的原子Cs磁强计。为此，我们将建立坚固和紧凑的传感器头以及优化的电子和激光单元。使用新型激光器和保偏单模光纤，我们将努力提高光的幅度和频率稳定性，并将磁强计噪声降低一个数量级。这将在对典型磁场中的基线漂移的测量中得到验证。改进后的系统将用于柏林PTB的BMSR-2屏蔽室的生物磁测量。