AI Article Synopsis
- Researchers describe a method for three-dimensional imaging using magnetic resonance force microscopy at room temperature, achieving full-volume imaging with different spatial resolutions in all three dimensions.
- The technique utilizes a magnetic-field gradient from a ferromagnetic particle for z-dimension resolution and radiofrequency pulse gradients from microcoils for x- and y-dimension resolution.
- To improve measurement sensitivity, advanced encoding techniques like Hadamard and Fourier encoding are utilized, resulting in a 3D image reconstruction from magnetic field data with a voxel volume of about 5 μm.
Article Abstract
Three-dimensional spatially resolved full-volume imaging by magnetic resonance force microscopy at room temperature is described. Spatial resolution in z-dimension is achieved by using the magnetic-field gradient of a ferromagnetic particle that is also used for the force detection of the magnetic resonance. The gradient of the radiofrequency pulses generated by two separate wire-bonded microcoils is used for spatial resolution in x- and y-dimension. To enhance the sensitivity of our measurement Hadamard- and Fourier-encoding schemes are applied due to their multiplex effect. Measurements were taken on a patterned (NH)SO crystal sample. From the calculated magnetic field distributions, a 3D image was reconstructed with a voxel volume of about 5 μm (1.2 μm × 3.0 μm × 1.4 μm in x-, y- and z-dimension).
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| http://dx.doi.org/10.1016/j.jmr.2019.01.005 | DOI Listing |
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