Accelerated computation of diffuse scattering patterns and application to magnetic neutron scattering

The original method of Butler & Welberry [J. Appl. Cryst. (1992), 25, 391-399] to compute diffuse scattering patterns from a simulated model crystal is extended to include magnetic scattering. In addition, it is shown that these computations can be accelerated by at least one order of magnitude using modern consumer graphics cards.