Figure 2
Schematic depiction of the experimental setup used for TISANE as implemented at SANS-1 (FRM II). Following the velocity selector, a chopper generates neutron pulses with repetition time TC. The neutrons pass through a sample subject to a periodic perturbation with a period of oscillation TS. Neutrons are recorded at a detector with a period of time binning TD. The scattered neutrons are characterized by the scattering vector q. The chopper control electronics, the sample modulation system and the detector are synchronized by the master trigger generator operating at 10 MHz. |