Figure 5
(a) McStas simulation of 1000 neutrons scattering from a Cu cylinder of 25 mm diameter and 10 mm thickness. (b) Intensity of the scattered neutrons detected by PSD1 in contact with the sample with respect to the open beam. (c) Intensity of the scattered neutrons detected by PSD2 at 200 mm from the sample with respect to the open beam. PSD1 and PSD2 are 200 mm apart, like Pos. A and Pos. B in Fig. 1, but in this case the detector is displaced, not the sample. |