Hand-held submersible real-time reagentless CBE sensor

We propose to demonstrate feasibility of a hand-held, fully self-contained, real-time, reagentless, submersible sensor which is neutrally buoyant when submerged and weighing less than 20 lbs in air, including internal batteries. The sensor integrates into a single unit: 1) a deep UV laser based, Rayleigh (R), resonance Raman (RR), native fluorescence (NF), and phosphorescence decay (PD) sensor capable of rapid detection and classification of trace concentrations of particulate materials such as bacterial spores and cells and dissolved chemical, biological, and explosives (CBE) hazards, and 2) a hybrid Differential Mobility Spectrometer (DMS) with two dual Ion Mobility Spectrometers (IMS2) for measuring a wide array of organic and inorganic compounds directly in the water column. This combination of detection methods in a single, hand-held, reagentless sensor provides a broad, overlapping, and confirming range of information about underwater CBE hazards. The sensor suite is rapidly trainable to new threats and hazards. The proposed sensor suite has a present TRL of 2 to 3, although the TRL level for components within the proposed sensor suite range from TRL 4 to 6 with software ranging from TRL 3 to 6.