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Magnetic resonance imaging with an optical atomic magnetometer

Shoujun Xu*Materials Sciences Division,Valeriy V. YashchukAdvanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720; andMarcus DonaldsonSimon RochesterPhysics, University of California, Berkeley, CA 94720Dmitry BudkerNuclear Sciences Division, andAlexander Pines*Materials Sciences Division,

Proceedings of the National Academy of Sciencesjournal2006en

ABI

Annotatsiya

We report an approach for the detection of magnetic resonance imaging without superconducting magnets and cryogenics: optical atomic magnetometry. This technique possesses a high sensitivity independent of the strength of the static magnetic field, extending the applicability of magnetic resonance imaging to low magnetic fields and eliminating imaging artifacts associated with high fields. By coupling with a remote-detection scheme, thereby improving the filling factor of the sample, we obtained time-resolved flow images of water with a temporal resolution of 0.1 s and spatial resolutions of 1.6 mm perpendicular to the flow and 4.5 mm along the flow. Potentially inexpensive, compact, and mobile, our technique provides a viable alternative for MRI detection with substantially enhanced sensitivity and time resolution for various situations where traditional MRI is not optimal.

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Mavzular

Atomic and Subatomic Physics Research Mechanical and Optical Resonators Spectroscopy and Laser Applications

Identifikatorlar

DOI: 10.1073/pnas.0605396103

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