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arXiv 2106.04556physics.atom-phquant-ph
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用扫描射频原子磁力仪进行电磁感应成像

Electromagnetic induction imaging with a scanning radio-frequency atomic magnetometer

Cameron Deans, Yuval Cohen, Han Yao, Benjamin Maddox, Antonio Vigilante, Ferruccio Renzoni

摘要:

我们展示了电磁感应成像与无屏蔽,便携式射频原子磁力仪扫描的目标对象。该配置满足从安全筛选到医学成像的典型应用中的标准要求。磁力计在物体上扫描的能力依赖于传感器头的小型化和环境磁场的主动补偿。此外,实施一种程序以从所记录的空间相关磁共振中提取高质量图像。该程序被证明是有效的抑制磁环境的空间变化的不利影响。

英文摘要:

We demonstrate electromagnetic induction imaging with an unshielded, portable radio-frequency atomic magnetometer scanning over the target object. This configuration satisfies standard requirements in typical applications, from security screening to medical imaging. The ability to scan the magnetometer over the object relies on the miniaturization of the sensor head and on the active compensation of the ambient magnetic field. Additionally, a procedure is implemented to extract high-quality images from the recorded spatial dependent magnetic resonance. The procedure is shown to be effective in suppressing the detrimental effects of the spatial variation of the magnetic environment.

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