Freight inspection systems such as container scanners and cargo scanners screen and check vehicles and cargo in sea ports, in container terminals and at border crossings. Mobile freight inspection systems can be flexibly deployed at the area of application. Stationary drive-through systems are suitable for higher throughputs at a fixed location. With an output of up to 6 MeV, freight inspection systems can penetrate steel up to 30 cm thick. Airports use freight inspection systems and baggage scanners to carry out non-invasive X-ray inspection of baggage and freight. In addition, X-ray scanners are used in forwarding agents, warehouses, and logistics companies.
For high-quality X-ray images with highly detailed resolution, precision detectors are essential. First Sensor's photodiodes with very low dark current and low capacity enable low-noise X-ray images with very high contrast. The X7 PIN photodiodes are optimized for scintillator luminescence radiation in the visible wavelength range and feature an ultra-flat design (chip-scale package). Using the latest flip-chip technology, the chip is mounted on the carrier with its active area and the contacts facing down. The chip is illuminated from the back. This enables a flat chip surface without fragile bond wires, which is ideal for the precision mounting of a scintillation crystal. By means of solder bumps and surface mount technology (SMT), multiple X7 photodiode elements can be assembled to create larger linear or matrix arrays with very high fitting accuracy. First Sensor develops and manufactures custom specific arrays, sensors, and complete systems for OEM manufacturers of freight inspection systems and baggage scanners worldwide.
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