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Cutting-Edge Detector for X-Ray and PET/CT Machines with Enhanced Sensitivity Reduce Radiation Exposure

By MedImaging International staff writers
Posted on 25 Sep 2023
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Image: Scientists have initiated testing of the groundbreaking X-ray machine detectors (Photo courtesy of Center for Diagnostics and Telemedicine)
Image: Scientists have initiated testing of the groundbreaking X-ray machine detectors (Photo courtesy of Center for Diagnostics and Telemedicine)

Scientists have successfully designed a prototype detector for X-ray and PET/CT scanners that uses perovskite-based components to convert radiation into electrical signals. These materials are especially good at creating sharp and detailed images, making it easier to obtain informative medical images. One significant advantage of this new technology is that it could make these imaging techniques more widely available for medical research. In addition, the improved sensitivity of these new detectors could also minimize the amount of radiation patients are exposed to during scans. The technology is now in the phase of extensive evaluation.

A team of scientists at the Center for Diagnostics and Telemedicine (Moscow, Russia) has unveiled a cutting-edge detector prototype. At its core is an optoelectronic converter that uses pioneering perovskite technology to change X-ray radiation into an electrical signal. In comparison to their existing analog counterparts, these new detectors excel in several key areas, promising broader access to radiation examinations. Once these detectors become operational, they have the potential to make X-ray scans more widely available to the public. The perovskite detectors can be seamlessly integrated into the electronic circuitry of a serial device and are currently being put through comprehensive tests. Looking ahead, the scientists will focus on setting up production for these detectors, given their impressive advantages over currently available options.

"Our endeavors center around pioneering a new generation detector architecture on the basis of perovskite,” said a researcher at the Center for Diagnostics and Telemedicine. “Perovskites represent a modern type of semiconductor materials that exhibit heightened sensitivity to ionizing radiation and is commonly utilized in radiology. This heightened sensitivity is poised to significantly limit radiation exposure to patients. Remarkably, our studies have demonstrated that perovskite crystals can endure substantial doses of radiation without compromising their optical properties, ensuring a prolonged operational lifespan. We remain sanguine that perovskites will serve as the base of post-silicon electronics."

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