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Technology for Food

Brand Protection

Technology for Food Safety

From brand protection to recall prevention, our XC-TDI series detectors are delivering multiple benefits to the global food industry.

The dual energy capability and super-fast imaging speeds of the XC-TDI – exceeding 10,000 lps – offers superior detection of contaminants in consumables. Our satisfied customers in the food industry have chosen the XC-TDI because it enables them to meet the most exacting statutory regulations, as well as safeguard their products against the emerging risk of deliberate contamination.

Our scientists work closely with our customers around the world and understand their business priorities. The XC-TDI stands out as the most cost-efficient detector on the market, as low dose imaging reduces stress on the tube ensuring a far extended lifetime compared to scintillator detectors.



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The XC-TDI series detector is a fast, dual energy, photon counting industrial detector.

Ideal for line scan applications which demand high speed inspection and material discrimination, the cadmium telluride (CdTe) photon counting technology enables high resolution imaging at fast speed with the ability to differentiate between subject materials. Its sensitivity, combined with efficient TDI scanning, maximises the use of available X-rays in generating high quality images thereby decreasing X-ray tube power requirements. The radiation hardness of CdTe offers the additional benefit of extending detector lifetime.

All Varex/Direct Conversion imaging receptors are designed to be integrated into a complete X-ray system by a qualified system integrator. The system integrator is responsible for obtaining FDA clearance for medical use or appropriate CE marking.


The basic component in our detectors is a direct conversion material, which converts the X-rays into electrical signals, and a CMOS (ASIC) which transforms the electrical signals into a data stream of either the integrated electrical charge or the number of photons which has entered each pixel. This data is then used to create a digital image which is either two- or three- dimensional, depending on the scan geometry.

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