Figure 2
Neutron radiographs of the metal foil sample at a sample-to-detector distance Δ = 189 mm. The arrows point to the sample. Scale bars represent 1 mm. Radiographs (corrected as described in the Experimental section) are shown (a) without phase retrieval and (b) after phase retrieval. The inset in panel (a) shows a photograph of the metal foil sample. The red boxes indicate the same region in the photograph and radiographs. Note that the photograph is not recorded in the exact same orientation as the radiographs and the arrows do not point to exactly the same position in the sample and the signal. |