Abstract
Abstract
The short wavelength of X-rays makes them attractive for high-resolution imaging systems in fields ranging from medicine to industry. The thin-film grating required for X-ray imaging can be created using printing, which is a cost-effective method for large-area imaging. Since the grating resolution (line/space, or L/S) influences the imaging resolution, it is crucial to enhance the L/S through printing methods. In this study, thin-film gratings were fabricated from silver nanoparticles using letterpress inversion printing, achieving a maximum L/S grating resolution of 1 μm/1 μm (the highest resolution achieved through printing). Subsequently, the cross-section of a pine needle was successfully imaged.