The WG H Container X-Ray Scanning Portal is used to inspect containers for contraband, explosives, weapons and the verification’s of manifests.
The system is capable of scanning up to 150 x 40 containers per hour alleviating inspection bottlenecks and delays.
Drivers simply drive through the system, the scanning process starts after the driver’s cabin has passed through the portal, ensuring the driver is not exposed to x-rays.
The system has been designed to enable the rapid and effective scanning of full size trucks with the minimum of impact on the movement of goods.
It is easy to operate and maintain thus making it the cheapest system to operate.
It utilises well proven technologies that are housed in a robust structure designed to withstand the rigours of operating in the harsh environment typically found in ports
The system uses a 7.5 MeV Betatron pulsed X-ray Source that is deployed in systems worldwide with Linear Scintillator/Photodiode detector arrays.
The system is capable of a sustained throughput of 150 trucks per hour (i.e. 1 x 18m truck every 23 seconds) assuming each truck is ravelling at 8 Km/hr. The actual throughput depends on how the user wants to handle the trucks while awaiting the results of the image analysis. Some cargo’s will be cleared very quickly but more complex cargo’s will take longer, the next truck will have to wait for a decision on the previous truck before being scanned.
In reality such high throughput’s are rarely required however the ability to scan that quickly means the minimum of delays should several trucks arrive at the scanner at the same time.
The system will penetrate over 300 mm of steel at the ANSI N42.46 test
The scan sequence is controlled by a Programmable Logic Controller, it uses both optical and magnetic sensors to track progress of the truck through the system and triggers the various events needed to safely capture an image.
The Image data is collected, distributed, displayed and stored using several PCs connected through an Ethernet network. In the event of a power failure the computer network is protected by a UPS that is capable of keeping the network running until power is restored or it is powered down in a controlled way so that data is not lost.
CCTV cameras enable the operator to monitor both the progress of a scan and to ensure that nobody is in the scan area. A loudspeaker system allows the operator to communicate with anyone seen there.
The license plate reader / container ID recognition is also connected via the network so that the data from it can be incorporated with the image data. The system control computer always displays the current system status. It shows whenever a sensor is triggered, when X-rays are being generated and whether an E-stop of interlock has been activated. The X-Ray Betatron source status is also shown here. The control panel operation is easy to understand and operate the sequencing is automated.