Abstract: A high-speed, portal-based system that can rapidly identify the presence of viruses such as COVID-19 and its antibodies in vivo. The system uses a low-power, stimulated emissions Nuclear Magnetic Resonance (NMR) effect and associated signal processing to detect the presence of organics characteristic of the virus (such as 15N, 14N, 1H, and/or 13C). The walkthrough portal enables non-invasive, real-time screening at a low cost. Detection can be reliably made in vivo when the virus or antibody is present in the saliva, chest, lungs, or other organs at total counts as low as 108 copies per ml.

Abstract: A Nuclear Quadrupole Resonance detection system with features that include: a) slab radiating structure for the transmit path; b) reduced impedance transmit radiator; c) portal-embedded stripline couplers for receive path; d) wideband chirps each encompassing multiple simultaneous resonances; e) chirp sequencing enabling three channel architecture; f) magnetic amplification effect of ferrite-based directional couplers; g) determining position of substance within portal.