Multigas Sensor for Waste Monitoring

78550S Storage of radioactive wastes at many DOE facilities generates hazardous and explosive gases. Sensitive and selective monitoring of these gases is required to ensure the safe operation of storage facilities. This project will develop technology for multiple gas measurement using laser absorption spectroscopy. The sensor approach will be automated, self-calibrated, and self-checking; will use no consumable chemicals; and will require little mainenance. Phase I will identify the best spectral regions for the measurement. Laboratory experiments will be conducted to show the feasibility of obtaining high sensitivity and wide dynamic range. Methods to reduce the sample volume will be investigated. Commercial Applications and Other Benefits as described by the awardee: Commercial applications are expected to include hazardous gas detection at industrial facilities; natural gas leak detection; and environmental monitoring for greenhouse gas detection, particle formation, and nitrogen cycle studies.