Viken Detection HBI-120 is a rugged, ergonomic, handheld backscatter x-ray instrument that enables users to quickly and cost-effectively find concealed explosives, narcotics and other contraband through 3 mm of steel equivalent material — more than three times the thickness of typical motor-vehicle body panels — with none of the limitations of portable transmission x-ray systems. The HBI-120 weighs only 8.1 lbs. (3.7 kg) and images objects with a miniaturized, internal 120 keV x-ray generator that makes a raster-scanning pencil beam of x-rays to scan objects of interest. As the handheld HBI-120 is moved over the object, a 2- dimensional backscatter x-ray image of the object is displayed in real-time on HBI-120’s high-resolution transflective LCD touchscreen and saved in the instrument’s memory.