278 results about "Explosive detection" patented technology

An advanced technology screening checkpoint system includes a baggage screening zone, a passenger screening zone, and a secondary screening zone. The baggage screening zone may include an explosives scanning system and an imaging system, while the passenger screening zone may include an explosives detection portal and a self-divestment portal to show passengers what to divest prior to screening by a high sensitivity metal detection portal. In some implementations, a secondary screening zone includes a sealed-bottle scanning system, an enhanced explosives detection system, a weapons search routine, and a body scanning system. Centralized monitoring of screening results for individual detection and screening systems of the baggage, passenger, and secondary screening zones may be provided by a combined user interface (CUI).

A combined systems user interface (CUI) may be configured with an advanced technology screening checkpoint (ATSC), which is a passenger-friendly, high performance system for screening passengers and carry-on items to detect assembled bombs, bomb components, metallic and non-metallic weapons, and other contraband items. The CUI may include a baggage, passenger, and secondary screening status regions. The baggage screening status region displays screening information generated by an explosives screening system and a baggage imaging system, while the passenger screening status region displays screening information generated by an explosives detection portal and a metal detection portal. In some implementations, a secondary screening status region displays screening information generated by a body scanning system and an enhanced explosives screening system.

An explosives detection system which includes computed tomography (CT) and quadrupole resonance (QR) sensors for identifying particular explosive compounds present in passenger baggage. The CT sensor may be configured to automatically identify the presence or absence of bulk military, commercial, and sheet explosives during CT scanning of the baggage. Similarly, the QR sensor may be configured to responsively generate RDX and PETN signals during QR scanning of the passenger baggage. Using any of a variety of inspection protocols, the explosives detection system may generate an output alarm based upon data obtained from the CT and QR sensors.

The CT threat resolution system includes an primary EDS scanning process to identify threats and the nature of threats and a plurality of secondary CT scanning processes to resolve threats. The primary EDS scanning process and secondary CT scanning processes can be either separate machines or multiple processes within a single scanner. The secondary scanning process may utilizes dual energy scanning and/or high resolution scanning to resolve threats based upon the nature of the threat. An alarm indicates threats which cannot be resolved by the secondary CT scanning process for further operator investigation. Threats may be reviewed and resolved by an operator before the secondary CT scanning process.

The system and method for explosives detection may be used for detecting the presence of explosive elements. A testing device may have a case with a cover. A sample holder may be disposed in the case for receipt of a sample element and may have a sample retainer. The sample element may have a swipe pad attached to a backing element a heater may be disposed in the sample holder wherein the heater may be below the swipe pad adjacent the backing element when the sample element may be positioned in the sample holder. The heater may be in communication with an electric power source. The case may have a plurality of cavities formed therein for receipt of a plurality of fluid containers. The plurality of fluid containers may have at least a first reagent fluid and a second reagent fluid.

An integrated, multi-sensor, Level 1 screening device is described, which system provides a next-generation Explosives Detection System (EDS) that enables high throughput, while drastically reducing false alarms. In exemplary embodiments, the present system comprises a non-rotational, Computed Tomography (CT) system and a non-translational, X-ray diffraction (XRD) system, both in an inline configuration.

A tomographic volumetric x-ray imaging system that uses either multiple x-ray sources in a fixed configuration or a single source that can be shifted to provide a plurality of incident aspect angles. A combination of volumetric x-ray image data and multi-energy image acquisition provides an effective method for high confidence explosives detection within baggage or parcels.

Multitask vehicles for military use, rescue, transport, and explosive detection and removal. In one embodiment, the multitask, motorized vehicle, includes: a vehicle body having a rigid frame with a pair of front wheels and a pair of rear wheels mounted thereon; and a rotary mounting platform disposed on top of the vehicle body and which has a mounting portion being configured to interchangeably mount and remove various secondary systems or components, thereby permitting the multitask, motorized vehicle to change functions. Other embodiments are disclosed.

The present invention relates to a class of fluorescent, organic nanofibrils, and particularly the films comprising entangled piling of these nanofibrils exhibiting effective quenching of their fluorescence upon exposure the vapor of explosives. The invention also relates to a sensor and a method for sensing the explosives vapor and other volatile organic compounds, including the explosives taggants through the modulation of the fluorescence of the nanofibril film and the electrical conductivity of the nanofibrils. The invention also relates to a development of synthetic methods, protocols and techniques that leads to production of various arylene-ethynylene macrocycle (AEM) molecules, which consist of a shape-persistent, toroidal scaffold in planar conformation, with minimal ring strain and highly tunable ring sizes (from 0.5 nm to above 10 nm). The invention also relates to an approach to optimization of the one-dimensional molecular arrangement along the long axis of the nanofibril, which provides increased exciton (excited state) migration (via cofacial intermolecular electronic coupling) and charge transport (via pi-electronic delocalization). A combination of long-range exciton migration and efficient charge transport makes the nanofibrils ideal as sensory materials for detecting explosives and other volatile organic compounds through both optical and electrical sensing mechanisms.

The invention discloses an explosive substance testing system apparatus and testing method thereof. The apparatus includes an X-ray light path subsystem, a detecting subsystem, a servo subsystem and a computer subsystem, wherein the light path subsystem includes a 75Kev and a 150Kev energy segment white light sources; the light path subsystem and the detecting subsystem are totally mounted on a multiple shaft mechanical platform, at different angle positions at the same side relative to the object, so as to configure a Compton backscattering geometric light path. The testing method includes a computer software control method and a data processing method, including: adopting a control method integrating the scanning detecting and tracking detecting, acquiring the density information and Compton scattering energy difference pair information data of the object by a solid state detector to execute data-handling and characteristic matching, obtaining the density and effective atomic number information of the object, and determining whether the object is the explosive substance and the affiliated species by the pattern recognition, thereby implementing the quick, safe and nondestructive testing, which is suitable for flow ability test of case or human body carrying explosive substance.

The presence of trace molecules in air may be determined using an ion mobility spectrometer. Such devices may be used in the fields of explosives detection, identification of narcotics, and in applications characterized by the presence of very low airborne concentrations of organic molecules of special interest. The sensitivity of such instruments may depend upon on the method of gas sampling utilized. A virtual wall gas sampling system can greatly improve the sampling efficiency, particularly when the sampling needs to be performed at a distance from the air intake and large volumes need to be sampled. The virtual wall gas sampling system consists of an intake gas flow and a separate group of one or more sheet-like gas flows, which may be either mutually deflected to move with a circular motion or may be formed into a cylindrical bounding surface.

The presence of trace molecules in air is often determined using a well-known device called an ion mobility spectrometer. Such devices are commonly utilized in the fields of explosives detection, identification of narcotics, and in applications characterized by the presence of very low airborne concentrations of organic molecules of special interest. The sensitivity of such instruments is dependent on the method of gas sampling utilized. The vortex sampling nozzle consists of an intake gas flow and a separate coaxial heated, emitted gas flow that is deflected to move with a circular motion. A heated vortex sampling nozzle can greatly improve the sampling efficiency for low volatility target molecules, particularly when the sampling needs to be performed at a distance from the air intake and the vapor pressure of the target molecules is very low. Additionally, the vortex air may contain one or more additional substances that promote vaporization, combine with the target molecule, or provide a known marker in the ion mobility time-of-flight spectrum.

A method of and a system for displaying volumetric multi-energy CT images are disclosed, wherein a CT image, a Z image, and a label image from an automatic explosive detection are provided, are disclosed. The method comprises generating an index image through a nonlinear transformation of the CT image, the Z image, and the label image, rotating and coloring the index image as desired, and rendering and displaying the rotated and colored image.

An explosive detection system based on an ion mobility spectrometer detects the presence of trace molecules in air. Such instruments require an ion source to ionize the trace molecules. An ion source that does not require a radioactive source to operate can use the photoelectric effect to produce electrons. Such a photoelectric ion source will gradually be contaminated and lose its photoelectron emission properties when operated in the air. The photocathode of the ion source can be automatically regenerated by a heater in thermal communication with the photocathode. The heater may be activated when the photoelectron emission falls below a predetermined value ro may run or cycle continuously.

A solid state electrochemical gas sensor for detecting trace amounts of explosive materials and a method of detecting such explosives. The sensor has at least two electrodes. The at least two electrodes include a first catalytic electrode and a second catalytic electrode that are dissimilar and an electrolyte disposed between the first catalytic electrode and the second catalytic electrode. The sensor detects at least one gaseous specie emitted by the explosive material. At least one of a potential difference and a current flow is generated by at least one of catalytic and electrochemical reactions of the gaseous species emitted by the explosive material on one of the first catalytic electrode, second catalytic electrode, and the electrolyte. An explosive detection system that incorporates such sensors and methods is also described.

The invention belongs to the technical field of preparation of an inorganic and organic hybrid material with a fluorescence property and particularly relates to an ion exchange method for preparing an aggregation induced emission (AIE) group functionalized laminar zirconium phosphate material. Cation groups containing water-soluble AIE molecules are intercalated into the material by an ion exchange intercalation mode by using zirconium phosphate with a laminar structure as a framework element and organic amine as a pre-swelling agent, so that the inorganic and organic hybrid material with the strong fluorescence can be obtained. The method is suitable for various laminar zirconium phosphate materials which contain the AIE water soluble molecules of the cation groups and have the anion framework structures. The interlamellar spacing and the luminance of the zirconium phosphate can be effectively controlled by changing the varieties and the adding amounts of the AIE molecules or the pre-swelling agents, so that the material can be widely applied to the fields of medicine delivery, bioimaging, explosive detection and the like.