The situation of China's high-end X-ray imaging equipment and key components relying on imports is expected to improve! On the 18th, it was learned from Fuzhou University that the research team led by Professor Yang Huanghao, Professor Chen Qiushui, and Professor Liu Xiaogang from the National University of Singapore has pioneered the discovery of a high-performance nano scintillator long afterglow material internationally, and has successfully developed a new flexible X-ray imaging technology, enabling conventional SLR cameras and mobile phones to also take X-rays. This original achievement was published online in the international authoritative magazine Nature on the 18th. It is reported that traditional X-ray imaging equipment is difficult to obtain three-dimensional X-ray imaging of curved and irregular targets, and there are problems such as large volume and expensive equipment. Compared to traditional rigid devices, flexible electronic devices, as an emerging technology, have greater flexibility and can adapt to different working environments. However, the key technology of flexible X-ray imaging has always been difficult to overcome. Long afterglow refers to the presence of ultraviolet and visible light A type of luminescence phenomenon where X-rays and other excitation light can continue to emit for several seconds or even hours after stopping, such as the legendary night pearl that can continue to emit light in the dark. "Based on the unique luminescent properties of long afterglow materials, we have used them for the first time to achieve flexible X-ray imaging. However, traditional long afterglow materials require high-temperature preparation and the particles are too large to be used for preparing flexible devices," said Yang Huanghao. In response to the above-mentioned bottleneck issues, researchers have taken inspiration from the lattice of rare earth halides to prepare a new type of rare earth nano scintillator long afterglow material. On this basis, a transparent, stretchable, and high-resolution flexible X-ray imaging device was successfully developed by combining nano scintillator long afterglow materials with flexible matrices. This technology has advantages such as simple preparation process, low cost, and excellent imaging performance. It has shown great potential and application value in portable X-ray detectors, biomedical, industrial testing, high-energy physics, and other fields. According to relevant experts, this study has overturned traditional X-ray imaging technology and will effectively promote the localization of high-end X-ray imaging equipment, marking China's entry into the international advanced ranks in flexible X-ray imaging technology.
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