Verly low field nuclear magnetic resonance and magnetic resonance imaging using hyperpolarized gases and SQUID detectors

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Nuclear magnetic resonance (NMR) is a very powerful research tool based on the detection of electromagnetic signals that emanate from the nuclei of certain atoms. The frequency of these signals are uniquely linked to the magnetic environment in which the atoms are situated and as such can provide very precise information about a wide variety of physical, chemical, biological, and material properties. For example, the NMR signal from hydrogen atoms in our bodies can be detected non-invasively and used to locate and diagnose injury or disease. This technique, known as magnetic resonance imaging (MRI), is one of the most important tools in modern medicine.