Fig. 1From: Measurement of ferric iron in Chang’e-5 impact glass beadsMicroscopic characteristics of CE-5 glass beads. a BSE image of sample #090, which has a homogeneous contrast. b HAADF image of foil 1 extracted from #090. c BSE image of sample #084, which contains vesicles and numerous metal particles. d HAADF image of foil 2 extracted from #084. Abundant nanoparticles are visibleBack to article page