How does a backscatter scanner work?

Backscatter Imaging Principle

The backscatter imaging technique is based on the scattering of X-rays as they pass through an object. When X-rays interact with the object, they are scattered by differences in density and material boundaries within the object. This scattering creates backscattered signals, which are then detected by a receiver and processed using post-processing algorithms to reconstruct an image of the object's internal structure.

Because the scattering signals are influenced by the object's composition and density, the handheld backscatter imager can display a detailed, real-time two-dimensional image. By interpreting the shape and intensity (color) of the image, security personnel can identify potential threats. For instance, explosives and drugs generate strong photon signals that appear prominently in the image, while firearms and electronic devices can be identified based on their distinct shapes.

Handheld backscatter X-ray system, also known as a handheld backscatter detector, is a portable inspection device that integrates an X-ray source, detector, display, and other key components into a compact, all-in-one unit. This system leverages the backscatter imaging principle to generate real-time images of hidden objects.

Key Features of the Handheld Backscatter X-ray System

1. Single-Sided Imaging: Unlike traditional X-ray systems that require light sources and detectors on both sides of the object, the handheld backscatter system only needs to scan from one side. This compact design allows for greater mobility and flexibility in inspections.

2. Compact and Versatile: The system’s small size and design make it suitable for inspecting objects in tight spaces, such as against walls or suspended in mid-air. This overcomes limitations of conventional X-ray systems.

3. Non-Destructive and Efficient: The handheld system provides a non-destructive means of inspecting objects quickly, without the need for dismantling or damaging them, improving efficiency.

TRACELINE PB140 Backscatter X-ray Scanner Applications:

• Police & Border Control:
  Quickly detect hidden drugs, firearms, and other contraband concealed within vehicle tires, bumpers, exterior and interior panels, and more.

• Security Inspection:
  Rapidly scan suspicious packages, luggage, and vehicles to accurately identify potentially dangerous or prohibited items.

• Customs & Anti-Smuggling:
  Inspect vehicles, ships, and other modes of transportation to uncover hidden drugs, cash, and smuggled goods.

• VIP Protection & Major Event Security:
  Conduct rapid searches of venues, arenas, and rooms for concealed weapons, explosives, and surveillance devices.

• TSCM (Technical Surveillance Counter-Measures):
  Perform field inspections in restricted areas, meeting rooms, and vehicles to detect hidden electronic threats, such as eavesdropping or tracking devices.