Detects explosives at long distances through obstructions

In fact, explosives are hard to recognize especially when stored in barrels or in normal places. That means that in order to analyze them, they will have to take life-threatening risks when testing explosives directly. Researchers at the University of Technology have developed a method of using laser light to detect explosives within up to 100 meters, even when explosives are contained in containers.

Just like the system invented at the University of Michigan, the technology developed at TU Vienna is based on spectroscopy in which molecules are verified by laser light and their spectrum will help to shape the stool. chemical. According to Bernhard Lendl, only a few million photons make up Raman scattering and disperse particles of light are dispersed uniformly in many directions in which only a few return to the detector.

By using a high-performance telescope and ultra-sensitive light detectors, TU Vienna can extract as much information as possible from a very weak signal, allowing samples to be analyzed from far. When testing with explosives such as TNT, ANFO, RDX, the new method was able to detect them at a distance of 100m. In addition, for the analysis of obstructions such as containers, researchers used a simple geometric technique, the laser beam exposed to the container on a small area, focused, light signals The light that passes through it is then magnified on a large scale through the container, thereby helping to identify the explosives.

The application system would be well suited to use explosives at the airport as well as in the military, in addition to the researchers at TU Vienna who said that this method could be used to study geography as a mountain Flowing frozen.