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RIKEN's new pocket-size terahertz scanner can see things through clothes without harmful radiation.


RIKEN Institute has created a new terahertz scanner that can use to find the things that are hidden in clothes. Those terahertz scanners don't need harmful radiation like X-ray-based systems. Another thing is that the Terahertz radiation-based system doesn't need to get objects between them like some Gamma- X- or radio-wave-based systems. The gamma-ray-based systems require a gamma-ray source that is on the opposite side of the building than the sensor. 

The infrared-based sensors like cell phones with  IR cameras can see hidden guns through clothes against the body temperature. A combination of a terahertz-scanner and IR and regular cameras are the best way to search and recognize people, who has a possible knife or gun in a public place. The combination system that used multiband EM systems can take the image of the suspect and share it with entire systems. 



"RIKEN researchers have developed a handheld device that effectively uses the terahertz band of the electromagnetic spectrum for ‘X-raying’ objects without harmful radiation. By optimizing certain techniques and utilizing specific materials, they significantly improved terahertz wave power output and miniaturized the device. The technology promises various applications including non-destructive imaging and quantum research, with industrial collaborations underway". (ScitechDaily.com/Palm-Sized Powerhouse: RIKEN’s Handheld Terahertz Device to “X-Ray” Things Without Harmful Radiation)

The police street patrols can use that kind of tool. And if that scanner is installed in quadcopters that system can fly around the suspected person. And then look if there is something illegal hidden in clothes. 

But developers can mount that system to quadcopters or even killer drones. The police version of those killer drones can use tear gas, fentanyl, acoustic systems, or electric arrows to neutralize. The AI-based system can mark and even neutralize a person with a gun or explosives hidden in clothes. The same system that detects unauthorized things that a person hides can use also in a warzone. The system can search for people who have hidden guns or some other hidden equipment. 


https://scitechdaily.com/palm-sized-powerhouse-rikens-handheld-terahertz-device-to-x-ray-things-without-harmful-radiation/?expand_article=1

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