Figure 1: Schematic diagram of experimental setup at a pulsed neutron source.

(a) Neutron pulses travel from the source towards the sample and detector, which measures position X,Y and time T (determined relative to the time of spallation) for each registered neutron. (b) The measurement result is a set of neutron transmission images, each corresponding to a specific neutron energy. (c) Neutron transmission spectra measured for one of the samples (N3), extracted from the set of neutron transmission images; the solid line is the transmission calculated from the tabulated cross sections of Au and Pd. (d) Calibration of the flight path L and the source trigger delay ΔT0.