Researchers have made a substantial advancement in X-ray imaging sharpness and may be able to increase the processing speed of X-ray scans.
This establishes the foundation for expedited security clearance as well as improved medical imaging.
The secret to the advancement is a layer of gold applied to X-ray visualization devices.
Though X-rays used in security and health scans are invisible, they can be visualized as "lighting up" in a manner akin to glow-in-the-dark paint thanks to detectors that contain "scintillating" chemicals that absorb the radiation. Sensors use the visible light that the scintillating materials emit to produce images based on the X-rays. The images are crisper and more detailed with better lighting.
The scientists found that by coating the scintillating materials with gold, the visible light they emitted increased in brightness by 120%. The research was conducted in collaboration with Lukasiewicz Research Network-PORT Polish Center for Technology Development in Poland, and Nanyang Technological University, Singapore (NTU Singapore). According to data from the study published in Advanced Materials, the light released had an intensity of about 88 photons per kiloelectronvolt on average.
Consequently, there was an overall 38% increase in sharpness and an 182% improvement in the ability to distinguish between different parts of the X-ray images.
Because of the gold layer, the scintillating materials were prepared for the next radiation wave faster, with an average reduction in emission time of 1.3 nanoseconds, or roughly 38%, after absorbing the X-rays. This raises the possibility that gold could expedite the processing of X-ray images.
