Advanced X-Ray Sensor Module Enhances Airport Security

CEA-Leti, a renowned research institute in France, has made significant strides in enhancing airport security with the development of a cutting-edge detection module for small-angle X-ray diffraction. This innovative technology is now being utilized in a groundbreaking new design of airport baggage scanners, revolutionizing the way luggage screening is conducted.

The SDX 10060 XDi, a state-of-the-art scanner created by Smiths Detection, incorporates the advanced X-ray diffraction technology pioneered by CEA-Leti, replacing traditional transmission systems. This shift in approach has paved the way for more accurate and efficient detection of prohibited items within luggage, ensuring enhanced safety and security measures at airports worldwide.

Ensuring the safety of passengers and airline staff is paramount in the aviation industry. Every piece of luggage, whether it is carry-on or checked, undergoes rigorous screening to detect any potential threats such as weapons, explosives, or narcotics. However, conventional scanning methods often fall short in providing detailed information about the contents of the luggage, leading to potential risks.

By harnessing the power of X-ray diffraction signals at small angles through spectrometric detectors, security operators can now obtain precise insights into the nature of objects within luggage. This advanced technology enables the creation of detailed 2D or 3D contrast images of items, allowing for swift and accurate identification of suspicious materials without the need for manual intervention.

Loïck Verger, the Partnership Manager for X-ray and Gamma-Ray Imaging Systems at CEA-Leti, explains, "The process involves emitting photons using X-ray sources and capturing them with detectors as they pass through objects. Subsequent data processing enables the reconstruction of detailed images, providing invaluable information for security personnel."

Furthermore, the collaboration between CEA-Leti and Smiths Detection has resulted in the development of a sophisticated detection module comprising a CdZnTe semiconductor detector, an ASIC for signal extraction, and a specialized signal processing solution. This integrated system, combined with advanced algorithms and X-ray generators, has set new standards in luggage scanning technology.

The detector technology, protected by fifteen patents, has been successfully transferred to Smiths Detection under a licensing agreement. Jens-Peter Schlomka, Head of R&D for diffraction at Smiths Detection, highlights the efficiency of the new scanner geometry enabled by this technology, emphasizing faster scanning speeds and reduced maintenance costs.

Moreover, the versatility of X-ray diffraction systems extends beyond airport security, with potential applications in the medical sector for molecular imaging and theranostics. Verger notes, "The semiconductor detector, ASIC integrated circuit, and signal processing capabilities can be leveraged for various medical applications, showcasing the adaptability and potential impact of this technology."

In addition to airport security advancements, CEA-Leti has collaborated with Thales on projects involving portable full-body X-ray systems and 3D imaging for security and medical purposes. These initiatives underscore the institute's commitment to driving innovation and enhancing safety across diverse sectors.

With the successful integration of advanced X-ray technology into airport security systems, the future of luggage screening looks promising, offering enhanced precision, efficiency, and safety measures for travelers and airport personnel alike.