Fig. 1From: Free Volume Structure of Acrylic-Type Dental Nanocomposites Tested with Annihilating PositronsPAL spectra of non-polymerized Charisma-0 (a) and polymerized Charisma-3 (b) composites reconstructed from unconstrained x3-fitting procedure at the general background of source contribution. The bottom insets show statistical scatter of varianceBack to article page