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arXiv 2010.04437physics.atom-phphysics.app-phphysics.ins-det
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使用冷原子射频磁力计进行Magnetic Induction成像

Magnetic Induction Imaging with a cold-atom radio-frequency magnetometer

Alessandro Fregosi, Carlo Gabbanini, Silvia Gozzini, Lorenzo Lenci, Carmela Marinelli, Andrea Fioretti

摘要:

静态或射频\textsc{(rf)}磁场的灵敏检测对于许多基础研究和应用是必不可少的。在这里,我们演示了操作的冷原子为基础的,\textsc{rf}磁强计在执行{1-D和2-D成像}的小金属物体。它是基于一个冷的$^{85}$ Rb原子样品,并在一个无屏蔽的环境中工作,没有活跃的领域稳定。它在$5-35\, \rm{kHz}$范围带宽内显示出高达$200\, \rm{pT}/\sqrt{\rm Hz}$的灵敏度,并且可以在$0.8\, \rm{mm}$厚金属箔中分辨宽的切割$0.4\, \rm{mm}$。我们的系统的特点,使其成为一个很好的候选人在民用和工业监控的应用。

英文摘要:

The sensitive detection of either static or radio-frequency \textsc{(rf)} magnetic fields is essential to many fundamental studies and applications. Here, we demonstrate the operation of a cold-atom-based, \textsc{rf} magnetometer in performing {1-D and 2-D imaging} of small metallic objects. It is based on a cold $^{85}$Rb atomic sample, and operates in an unshielded environment with no active field stabilization. It shows a sensitivity up to $200\, \rm{pT}/\sqrt{\rm Hz}$ in the $5-35\, \rm{kHz}$ range bandwidth and can resolve a cut $0.4\, \rm{mm}$ wide in a $0.8\, \rm{mm}$ thick metallic foil. The characteristics of our system make it a good candidate for applications in civil and industrial surveillance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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