A spiropyran-based X-ray sensitive fiberElectronic supplementary information (ESI) available. See DOI: 10.1039/c5cc03977k

This study attempted to visualize reversible X-ray radiation by using a poly-( l -lactic acid) (PLLA) composite fiber with an average diameter of 150 μm. The fiber contains photostimulable phosphor (PSP) BaFCl:Eu 2+ particles that are subsequently dyed with the photochromic spiropyran dye (1,3,3-trimethylindolino-6′-nitrobenzopyrylospiran) (6-nitro BIPS). A poly-( l -lactic acid) (PLLA) composite fiber containing photostimulable phosphor (PSP) BaFCl:Eu 2+ particles and a photochromic spiropyran dye (1,3,3-trimethylindolino-6′-nitrobenzopyrylospiran) (6-nitro BIPS) is undertaken to visualize reversible X-rays.