Explosive Detection
Explosive Detection - Related Videos
10:33
Research and Development of High-performance Explosives
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Cited by 2 •
2016
Developmental testing of high explosives for military applications involves small-scale formulation, safety testing, and finally detonation performance tests to verify theoretical calculations. This paper will share typical development tests associated with the measurement of detonation velocity and detonation pressure.
08:35
Minimum Burning Pressures of Water-based Emulsion Explosives
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2017
We present an apparatus based on hot-wire ignition in a pressurized enclosure and an associated methodology to measure the minimum pressure required to induce sustained combustion in water-based emulsion explosives. This method improves product characterization to allow one to use them more safely during pumping and mixing operations.
08:51
Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers
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Cited by 5 •
2017
For small chiral species, Coulomb Explosion Imaging provides a new approach to determine the handedness of individual molecules.
07:22
Standardized Method for Measuring Collection Efficiency from Wipe-sampling of Trace Explosives
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Cited by 7 •
2017
Optimized sampling protocols and the development of new wipe materials can be facilitated by standardized measurements of collection efficiency from wipe-sampling. Our approach for sampling trace explosives uses an automated device to control speed, force, and distance during wipe-sampling followed by extraction of collected explosives.
07:57
Quantitative Detection of Trace Explosive Vapors by Programmed Temperature Desorption Gas Chromatography-Electron Capture Detector
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Cited by 6 •
2014
Trace explosive vapors of TNT and RDX collected on sorbent-filled thermal desorption tubes were analyzed using a programmed temperature desorption system coupled to GC with an electron capture detector. The instrumental analysis is combined with direct liquid deposition method to reduce sample variability and account for instrumentation drift and losses.
FAQs
Explosive detection systems can target vapors, microscopic particles, or other residues, depending on what remains available for analysis. Their sensing stage examines these traces for characteristic chemical signatures rather than relying on a single physical presentation of the material. This flexibility helps systems address concealed threats during security screening and supports evidence examination in forensic investigations.
These methods represent different technical approaches for recognizing explosive signatures. Ion mobility spectrometry, mass spectrometry, chemical sensors, and trained biological detectors each provide a distinct detection pathway, so engineers can compare their suitability for a particular system. Selection is connected to desired sensitivity, selectivity, response time, portability, and performance under varied environmental conditions.
Sensitivity helps a system respond to small or limited traces, while selectivity helps it distinguish relevant explosive signatures from other substances. Optimizing both characteristics is essential because improving one without adequate control of the other can affect practical performance. Engineering designs therefore consider detection capability together with response time, portability, environmental resistance, and false-alarm behavior.
Varied environmental conditions can influence how consistently a detection system recognizes a target signature and avoids false alarms. For this reason, engineers evaluate resistance to interference as well as sensitivity and selectivity. Designing for dependable operation across changing conditions is particularly important in public screening locations, where unreliable alerts can reduce efficiency and complicate decisions about concealed threats.
A screening workflow examines available vapors, microscopic particles, or residues, applies a detection method to identify characteristic chemical signatures, and uses the result to support decisions about a possible concealed threat. The system may be engineered for rapid response and portability, allowing it to operate in transportation hubs, airports, or other security-screening environments.
Forensic teams can use detection results to examine residues associated with an incident, while bomb-disposal operations can use detection technologies to support safer handling of suspected threats. These applications extend beyond routine screening because the technology helps locate or characterize explosive traces where direct investigation may be hazardous. Engineering priorities include portability, response time, and dependable performance.
Remote sensing and automated screening allow detection capabilities to be integrated into systems that support security operations without relying exclusively on direct manual inspection. Engineers can tailor these systems around response time, portability, selectivity, sensitivity, and resistance to false alarms. Such designs are relevant at airports, transportation hubs, military sites, and other locations requiring threat detection.