Trace Vapor Generator for Explosives and Narcotics (TV-GEN)
Technical Report,01 Jan 2017,31 Aug 2018
NAVAL RESEARCH LAB WASHINGTON DC WASHINGTON United States
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The Trace Vapor Generator for Explosives and Narcotics TV-Gen is a portable and compact instrument designed to deliver a continuous source of trace-level vapors and vapor mixtures. It was developed to evaluate new materials and sensors under development for explosives and narcotics detection. It consists of a vapor generation system utilizing the nebulization of solution-based analytes, an oven to promote efficient transport, and a control box that provides dedicated computer control with logging capabilities. The TV-Gen provides a single vapor output with a dual manifold that can be easily switched between clean air and trace levels of analytes. The humidity and analyte introduction is provided using the custom nebulizer system that reproducibly and accurately generates trace vapors of low vapor pressure compounds from parts per quadrillion to parts per million levels. The TV-Gen has been demonstrated for explosives, including nitromethane, nitroglycerine, ethylene glycoldinitrate, triacetone triperoxide, 2,4,6-trinitrotoluene, pentaerythritol tetran, and hexahydro-1,3,5-trinitro-1,3,5-triazine.
- Ammunition and Explosives