We report on the use of radio-frequency optical atomic magnetometers for magnetic induction tomography measurements. We demonstrate the imaging of dummy targets of varying conductivities placed in the proximity of the sensor, in an unshielded environment at room-temperature and without background subtraction. The images produced by the system accurately reproduce the characteristics of the actual objects. Furthermore, we perform ﬁnite element simulations in order to assess the potential for measuring low-conductivity biological tissues with our system. Our results demonstrate the feasibility of an instrument based on optical atomic magnetometers for magnetic induction tomography imaging of biological samples, in particular for mapping anomalous conductivity in the heart.
Cameron Deans, Luca Marmugi, Sarah Hussain, and Ferruccio Renzoni, "Optical atomic magnetometry for magnetic induction tomography of the heart," Proc. SPIE 9900, Quantum Optics, 99000F (Presented at SPIE Photonics Europe: April 06, 2016; Published: 29 April 2016); https://doi.org/10.1117/12.2227538.
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