Abstract
A flexible and highly sensitive scintillation screen is urgently expected for X-ray imaging technology, especially for non-flat, flexible objects in medical and industrial applications. Here, we report a sandwich structure of polymer-perovskite quantum dots-polymer (PPP) scintillation screen. The outer polymer layer provides high mechanical stability and encapsulation for the internal perovskite quantum dots active layer. The relative light output remains 93 ± 0.5% of its initial value after bending cycles up to 600 with a bending radius down to 2.5 mm. This PPP scintillation screen exhibits ultra-sensitivity to low energy X-ray with a detection limit of 1.57nGyair/s and fast decay time of 63.7ns. Well-resolved X-ray images are recorded with a common digital camera with a spatial resolution of 5.35 lp/mm at MTF = 0.3 under the exposure dose of 12 μGyair, which is much lower than the requirement of medical applications. These features demonstrate that this flexible scintillation screen can be applied for non-flat X-ray imaging applications under low-dose X-ray exposure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.