Maddox, Benjamin;
Deans, Cameron;
Yao, Han;
Cohen, Yuval;
Renzoni, Ferruccio;
(2023)
Rapid Electromagnetic Induction Imaging with an Optically Raster-Scanned Atomic Magnetometer.
IEEE Transactions on Instrumentation and Measurement
, 72
, Article 4503105. 10.1109/tim.2023.3261906.
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Abstract
We present an apparatus to overcome the limitations of mechanical raster scanning in electromagnetic induction imaging (EMI) techniques by instead performing a 2-D optical raster scan within the vapor cell of a radio frequency atomic magnetometer (RF-AM). A large cuboidal 87Rb vapor cell is employed to act as the medium of an RF-AM with the pump and probe beams translated in the cell via acousto-optics. The technique is shown to give robust and repeatable magnetic measurements over the cell volume and successfully resolves conductive targets with EMI. Optical raster scanning removes the limitation of slow mechanical actuation, and a fast imaging procedure is enacted resolving conductive targets at a rate of 40 ms/pixel.
| Type: | Article |
|---|---|
| Title: | Rapid Electromagnetic Induction Imaging with an Optically Raster-Scanned Atomic Magnetometer |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/tim.2023.3261906 |
| Publisher version: | https://doi.org/10.1109/TIM.2023.3261906 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | Atomic magnetometers (AMs), electromagnetic induction imaging (EMI) |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10167837 |
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