Bowtell directs the SPMIC and leads hardware development for biomedical imaging, including the gradient/shim and bi-planar coil systems and magnetic-shielding/field-nulling that make wearable OPM-MEG possible, alongside ultra-high-field MRI. The work complements NV-center diamond ensemble quantum sensing (DEER, NMR, T1 relaxometry) at pT/sqrt(Hz) sensitivity by pursuing the same field-sensing goals in a different physical platform.