Brand new laser system will look for explosives at a distance of 100 meters

Austrian scientists from the Vienna Institute of Technology developed a brand new laser system, that can "sniff" Explosives at a distance of 100 meters. In the development of researchers used fairly recognizable scientific approach which called Raman spectroscopy. At its base the effect of Raman light scattering or the Raman effect. It is that light, which certain molecules dispersed substance changes its own length and wave numbers. After analyzing the range of the reflected light can be very accurately find the molecules of the substance.

All scientific facilities and devices which use the Raman effect, reference studied material must be placed in proximity to a particular light source and photodetector which detects reflected light range. According to Bernhard Tsahgubera, a scientist from the Institute of Technology of Vienna, only a few of the hundreds of millions of photons that fall on the material used in the process of Raman scattering. They are dispersed uniformly on all fronts, because only a small part of the "Raman" photons takes place in a light-sensitive sensor. But even this very weak optical signal can give quite a disk imaging, especially if you use high-performance optics and a high-sensitivity photosensors.

The new laser system will help find explosives at a distance of up to one hundred meters

Together with a team of scientists working specialists from the Austrian Armed Forces. Their goal was to test the effectiveness of the new laser sensor to detect vserasprostranennyh explosives such as ANFO, TNT and RDX. According to Angelina Krizostom, a scientist who took part in the trials, system able to reliably find Explosives even at distances greater than 100 meters.

System worked well even in cases where an explosive substance placed in an opaque container. Part of the laser photons all the same could seep inside the container, starting the process of Raman scattering, which recorded remote sensing photoreceptor.

New laser scanners can be used in different systems of airport security or other public places in the army for finding improvised explosive devices. But the brand new development will also be useful for academic research, for example, for analysis of rocks at gallakticheskih bodies and the planet.

Like this post? Please share to your friends: