Table 1. Time-averaged neutron intensities at the sample and different parts of the scattering characterization system with a pyrolytic graphite single-crystal sample simulated with McStas and Geant4 .

Position	McStas (Hz)	Geant4 (Hz)
Sample incident	1.45 × 1010	1.45 × 1010
Sample transmission	1.16 × 1010	1.16 × 1010
2.7 meV analyser	1.50 × 109	1.50 × 109
5.0 meV analyser	1.20 × 109	1.19 × 109
5.0 meV detector	1.98 × 108	1.98 × 108
Analyser transmission	7.47 × 108	7.31 × 108