Purpose of the development: Contactless detection and identification of explosives (E).

Recommended application field: It is promising for use at post offices in airports, railway stations, check points, when examining unidentified or suspicious objects, individual to decide on permitting their entry to especially important facilities and also when searching for mines and explosive devices in cases from different materials.

Advantages over analogues: high selectivity to a specific type of E and ability to identify it (presence of other substances in the investigated zone, E mechanical mixture do not affect the probability of the specific E type detection), independence of detection parameters of the geometrical shape, tightness of the packing, presence or absence of the E gaseous emissions, relative simplicity of design. Safe operation (they produce no hazardous effect on human organism, on magnetic carriers and radio devices), possibility of combined application together with devices operating on other physical principles, for example, with X-ray examination facility. ability to detect E that are hard or impossible to detect using other ways, for example, plastic and elastic ones. Tests proved high sensitivity of the NQR method. Specifically E hex with mass 25 g was detected with 1s with confidence level more than 98%. Probability of false alarm is around 1%.New kinds of products based on achievement of advanced technologies, have a practically free niche on the market of safety aids with good marketing prospects.

The development stage readiness: Introduced in production

Description of the development:
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Non-destructive direct method of E detection requiring no devices calibration and results interpretation is based on using the phenomenon of nuclear quadrupolar resonance (NQR). Under action on E of radiofrequency pulses of specific frequency and sequence, resonance excitation and response signal radiation on the stated frequency occur. The NQR response signal level is directly proportional to the resonating nuclei number (E mass) and practically does not depend on the probing pulse power. There have been fabricated industrial samples of devices for contactless detection of E (a conveyor-type device with a working chamber of 160 liters in volume to examine baggage and hand-luggage, a device with an open-type sensor to examine baggage, hand-luggage, suspicious objects in one-side access conditions, a device with an open type sensor detect E in shoes worn by an individual, a device with an open type sensor to detect E under the clothes on an individual). Techniques to detect hexogen, octogen, PETN have been mastered. Methods of TNT detection are being developed. A safe-box type device to examine mail and small objects to detect with the working chamber volume 15 liters is ready for batch-production. The device is protected by RF patent # 2190842 of 10.10.2002. Application for RF patents: # 2001121349/28 issued on 01.08.2001 and # 2001110214/09 issued on 17.04.2001.

Information about newness of the development:
there are Ukrainian patents -- 1 items

Possibility of transfer abroad:
Licence's sale
Joint production, sale, exploitation

Photo

Country Russia

For additional information turn to:
E-mail: gal@uintei.kiev.ua