Hybrid Monte Carlo/Deterministic Methods for Accelerating Active Interrogation Modeling

Consistent Adjoint Driven Importance Sampling using Space, Energy and Angle

“…Standard space/energy CADIS speeds up both steps in this problem dramatically, with an overall improvement of about 390 for the whole two-step CADIS method compared with a single analog calculation of a barrel containing HEU. 16,17 Angular CADIS, with and without source biasing, was applied to both steps of this problem. For calculating the fission source induced by the interrogation neutrons, angular CADIS without source biasing was three times faster than CADIS; with source biasing, it was 3.3 times faster than standard CADIS.…”