Figure 2
Schematic diagram of the neutron paths for the different choices of incident wavelength. BC1 and BC2 represent the bandwidth choppers at L = 7.2 m (BC1) and 9.7 m (BC2). (Top) First frame. The T0 chopper works at 50 Hz so as not to cut the short-wavelength neutrons. (Bottom) Second frame. The T0 chopper works at 25 Hz so as not to cut the available wavelength of neutrons. |