A comparison of Monte-Carlo simulations using RESTRAX and McSTAS with   experiment on IN14
  Monte-Carlo simulations of a focusing supermirror guide after the monochromator on the IN14 cold neutron three-axis spectrometer, I.L.L. were carried out using the instrument simulation programs RESTRAX and McSTAS. The simulations were compared to experiment to check their accuracy. Comparisons of the flux ratios over both a 100 mm2 and a 1600 mm2 area at the sample position compare well, and there is very close agreement between simulation and experiment for the energy spread of the incident beam. 
A. R. Wildes, J. Saroun, E. Farhi, I. Anderson, P. Hoghoj and A.   Brochier