The Attila product includes the functionality of Attila4MC and the Attila deterministic solver optimized for standalone forward and adjoint calculations. The state-of-the-art Attila solver deterministically solves the Linear Boltzmann Transport Equation, without the use of empirical corrections. The Attila deterministic solver is well suited for calculating global solutions, especially in deep penetration cases, and for rapid design iterations.
Attila and MCNP are highly complementary. Once an Attila calculation is completed, an MCNP run can be easily performed using the same computational model, source, and material property information. This GUI driven process provides an easy and rapid means to verify a solution through two independent first principles methods.