一种用于生物医学应用的紧凑、高性能原子磁力计。
A compact, high performance atomic magnetometer for biomedical applications.
出版信息
Phys Med Biol. 2013 Nov 21;58(22):8153-61. doi: 10.1088/0031-9155/58/22/8153.
Abstract
We present a highly sensitive room-temperature atomic magnetometer (AM), designed for use in biomedical applications. The magnetometer sensor head is only 2 × 2 × 5 cm3 and is constructed using readily available, low-cost optical components. The magnetic field resolution of the AM is <10 fT Hz–1/2, which is comparable to cryogenically cooled superconducting quantum interference device (SQUID) magnetometers. We present side-by-side comparisons between our AM and a SQUID magnetometer, and show that equally high quality magnetoencephalography and magnetocardiography recordings can be obtained using our AM.
摘要
我们提出了一种高灵敏度的室温原子磁力计（AM），专为生物医学应用而设计。磁力计传感器头仅为 2×2×5 cm3，使用现成的低成本光学组件构建。AM 的磁场分辨率<10 fT Hz-1/2，与低温冷却超导量子干涉器件（SQUID）磁力计相当。我们展示了 AM 与 SQUID 磁力计的并排比较，并表明使用我们的 AM 可以获得同样高质量的脑磁图和心磁图记录。
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