Russian Academy of Sciences, scientists have created the world’s most sensitive detector of explosives

Scientists are three institutes of the Russian Academy of Sciences have designed and built the world’s most sensitive instrument for remote detection of explosives can recognize one molecule of explosive vapor from a million to a distance of 50 meters. 

 

"The prototype device weighs about 600 kilograms and therefore is more for stationary operation in the checkpoints, but if necessary it can drive up to a potentially dangerous objects detected in a public place and turn it into a source of radiation to the desired angle," — said the head of the laboratory of the Institute of Problems of Chemical and Energetic Technologies SB RAS Anatoly Pavlenko.

According to him, a special excimer laser (a type of ultraviolet gas laser) with a very narrow emission band, developed at the Institute of High Current Electronics in Tomsk, scans the surface of the object and a few cubic feet of space around it, revealing the contents of explosive vapor using an optical laser equipment — lidar.

Pavlenko said that the lidar method, in particular, is widely used throughout the world for monitoring and sensing of the atmosphere. To do this, the object of interest aspirated direct a laser beam that is reflected, and the return signal is collected using a powerful telescope, obtained by determining the spectrum of the substance on the special equipment (monochromator). Of detecting and analyzing instruments, scientists have designed and built the Tomsk Institute of Atmospheric Optics SB RAS.

According to the head of the laboratory, a negligible concentration of explosives, one molecule in a million molecules of the space, the newest, not yet implemented the Israeli development of lidar detectors can not register more than two and a half meters from the property. During the test, the selection committee of the customer, according to him, was made the following experiment: Test touched a hard surface checkers explosives and a blank sheet of paper, after which the beam DOVV-1 with 15 meters (from the adjacent walls of the room) found in twenty centimeters above the sheet BB pair.

"The high sensitivity of the device will identify the accomplices of terrorist acts in cases where they not only kept the explosives in his hands, but were not in the room where it was stored or produced," — said Pavlenko.

The agency’s interlocutor said that the patented technology developed in cooperation with the Federal Security Service (FSB). This summer, the remote detector tests are planned in different physical conditions. Depending on the results, a decision on the further adaptation of the design of the detector to different conditions of use.

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