Terahertz (THz) waves are a part of electromagnetic waves that fall under a frequency range of 0.3 and 3 THz. The terahertz scanner is a masked item detector that receives and analyses terahertz frequency emitted by the body to detect items such as powder, liquid, weapons, and other concealed items. In terahertz scanning, the scanning element directs the radiation on a sensor and a consolidated image is generated after an imaging processor communicates with the sensor. The scanning technology can be used as a standalone security system or integrated into wider security architectures. These scanners capture images rapidly and safely owing to the non-invasive screening process they use. Multiple scanning is also possible as the scanners can be utilized for a distance of up to 10 meters, thus ensuring maximum security with no gender specific screenings. A major factor driving the terahertz scanner market is the rise in demand for accurate security systems for the filtration of drugs, w...