The Attila suite has a GUI driven activation capability (Fornax) that tracks the population of isotopes created through neutron activation and decay processes, compatible with both SMP (attilasolver) and DMP (severian). Fornax provides users with the capability to use the Rigorous Two-Step (R2S) method with an Attila deterministic or Attila4MC (MCNP6) based workflow. With the Attila deterministic workflow, users will have the ability to run neutron flux and activation calculations on the tetrahedral mesh and then produce gamma sources at desired decay time steps with an appropriate neutron flux strength. The gamma sources will be produced on a mesh element wise basis, and the activation gamma calculations can then be run on the same tetrahedral mesh, making for an accurate, simple and fast workflow.
Users will have the flexibility to choose regions to burn and whether to include additional report data such as radioactive isotope inventories and activity data. The Attila4MC workflow will perform cell wise activation calculations on the tetrahedral mesh, generating cell wise activation gamma sources that can be run in MCNP. These workflows provide for a simple method for visualising activation gamma contours through the use of Tecplot in the Attila software suite.
Performed as a 2-step process (R2S):
Benchmark 1 to validate accuracy of dose-rate calculations after shut-down in representative ITER shielding conditions (ITER Task T-426)
Attila® is a trademark of Silver Fir Software
MCNP® and Monte Carlo N-Particle® are registered trademarks owned by Triad National Security, LLC,
manager and operator of Los Alamos National Laboratory.
SpaceClaim® is a trademark of ANSYS, Inc. Tecplot 360® is a trademark of ANSYS, Inc.