1 GHz and Beyond: Challenges in high-field NMR magnets - Embedded.com

1 GHz and Beyond: Challenges in high-field NMR magnets


In a blog on Agilent's Spinsights site Paul Noonan explains that his efforts since joining Agilent as a principal magnet engineer in late 2009 have focused on high-field NMR.

There are two parts to this says Noonan. “We have a range of projects aimed at optimizing low temperature superconductor technology at proton resonance frequency up to 1 GHz. Beyond that, we’re working to use high temperature superconductors to produce fields in excess of 1 GHz, to push the limits of resolution and sensitivity for studies in structural biology, metabolomics, chemical profiling and other molecular research. There are different challenges associated with the two areas. In this post, I’ll focus on the first area—1 GHz and below.

In the 1 GHz range, we are developing technology to enable us to exploit low temperature superconductors at high current density whilst maintaining reliability. We’re working to make our magnet designs more efficient, so essentially we can cram more turns of superconductor into a smaller space and still have a reliable, high-quality magnet at optimum cost. We have an experimental program where we are trying out concepts on how to do this, using relatively small test coils. We’re using the experimental data from those to validate numerical models of the coils. We can then apply the validated models to help us design full-scale products with a high degree of confidence.

To read more see: 1 GHz and Beyond: Challenges in high-field NMR magnets.

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