The explosives detection thrust area focuses on understanding the fundamental problems of trace detection of explosives, including direct detection of the explosive, detection of the explosive device, and improvement of explosive sample collection. The goal is to develop sensing systems that are sensitive (capable of detecting ultra-low amounts of explosives), selective (reducing the number of false positives and false negatives), and adaptable (able to be reconfigured as new types of explosives become threats). Approaches to these problems include:
- Investigation of the fundamental physical processes underlying the traditional trace detection techniques of ion mobility spectrometry and differential mobility spectrometry, including experimental and modeling activities.
- Development of new gas sensors and sensor arrays using a variety of modalities such as chemiresistors, nanocantilevers, fluorescence quenching, and heat transfer techniques.
- Synthesis and evaluation of new trace collection systems which can enhance the explosive signature by improved particle collection, vapor plume stimulation, and analyte specific sorbent substrates.
- Remote detection of explosives by laser photodissociation fluorescence methodology and determination of the physics and chemistry of the ultraviolet ablation process, the signature of explosives in various environments, and the sensitivity.
Explosives Detection Sensors Research Team
Team Leads: William Euler and Carey Rappaport
Detection via Optical Chemosensors Using Nanocomposites from Porous Silicon Photonic Crystals and Sensory Polymers
Gas Sensors for the Detection of Explosive Precursors Using Metal Oxide Catalysts
- Otto Gregory URI
- Nate Lewis CalTech
Decomposition rate constants, heats of associations, & ion lifetimes of explosives in air at ambient pressure
- Gary Eiceman NMSU
Modeling of surface-particle interaction
Explosive Detection using Hyperspectral Imaging
- Charles (Chuck) DiMarzio NEU
- Max Diem NEU
- Stephen (Steve) McKnight NEU
- Miguel Velez-Reyes UPRM
- Nayda Santiago UPRM
Millimeter-Wave Standoff Detection of Concealed Explosives
- Carey Rappaport NEU
- Jose Martinez NEU
THz genertation & detection with gases for standoff detection
- X.-C. Zhang RPI
Intelligent Mass Spectrometer for Identifying Explosives & Chemical Weapons
- Rich Camilli WHOI
Detection of Electronically Initiated Explosive Devices
Remote Raman spectroscopy Detection of High Explosives
- Samuel Hernandez UPRM