2023-04-16 02:00:00
A prototype of a new mine detector developed by the Australian Commonwealth Scientific and Industrial Research Organization (CSIRO) (black disc). It detects the molecular signal of the explosive inside the mine. Courtesy of CSIRO
A new technology has been developed to remove ‘landmines’, an inhumane weapon that indiscriminately attacks an unspecified number of civilians. The key is to detect the explosives inside the mines, not to capture the metal that makes up the body of the mines as it is now. Detection efficiency goes up because you can not pay attention to the wrong metallic material like a can buried in the ground. The principle of a magnetic resonance imaging (MRI) device used in hospitals to look inside the patient’s body was used.
The Commonwealth Scientific and Industrial Research Organization (CSIRO) recently announced that it has devised a method that can effectively detect landmines using the principles of MRI. According to CSIRO, it is estimated that more than 100 million land mines are buried in more than 60 countries around the world. Mines are used as a fence to reduce the enemy’s activity range and protect allies, but after the war is over, they attack innocent local residents. Residents who remain in their villages after the conflict are killed or injured by stepping on mines while walking on the street because they do not know exactly where the mines are buried. More than 6,500 people are killed every year worldwide.
Nowadays, metal detectors are mainly used to find mines. This is the result of focusing on the fact that metal was used in many mines. However, there are also many strange metals, such as tin cans, buried in the ground. In addition, some landmines do not use metal. This means that catching mines with a metal detector is inefficient and has many holes.
The CSIRO researchers used the principles of MRI. MRI is a device that converts the motion of hydrogen molecules in water in response to a magnetic field into an image. Basically, it is a technology that focuses on finding out the molecular structure of a specific substance. Through this, the location and properties of the disease deep in the body are identified.
Based on this, the research team developed a magnetic resonance sensor that responds specifically to the molecular signal of an explosive entering a mine. Using this technique, you can quickly and easily find mines buried in the ground that contain explosives. It is like devising a technology to find unique characteristics that only explosives have on the ground.
“Landmines prevent residents from safely accessing their homes, hospitals and schools,” CSIRO said in an official statement.
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