Technical Program - Workshop

Organizer: Mark DeHart (Oak Ridge National Laboratory)
Location: Promenade 4, Wednesday, April 15 (1-5pm)

The Triton sequence of the SCALE system combines deterministic and Monte Carlo capabilities into a multipurpose transport analysis tool. SCALE can be used to perform automated cross-section processing and execution of two-dimensional NEWT transport calculations. NEWT is an arbitrary-geometry, discrete ordinates transport solver within SCALE that can be used for eigenvalue calculations, critical buckling searches, forward and adjoint flux solutions, cross-section weighting, collapse, and homogenization, and can be used to generate few-group constants for lattice physics calculations. Coupled with ORIGEN-S via Triton , NEWT is most often used in 2-D depletion calculations. Such calculations can be used to calculate isotopic concentrations as a function of burnup, decay heat, neutron and gamma, source terms, radiotoxicity and dose estimates. Used in lattice physics calculations, Triton can be used to perform transport branch calculations at each depletion step, and to save lattice physics cross sections and other physics parameters for use in subsequent analysis. NEWT's arbitrary-geometry capability lends it to a wide variety of lattice analyses, including but not limited to PWR, BWR with control blades, VVER, and CANDU and ACR-700 designs. Experienced Keno-VI users will find that because NEWT geometry input is based on that of KENO-VI, exchanging (2-D) models between the two codes is trivial. However, for some inherently three-dimensional configurations, the 2-D solution of NEWT is inadequate; in such cases, the alternative is to use Triton with Keno V.a or Keno-VI as the transport solver, to accommodate 3-D depletion.

This workshop will provide an overview of the lattice physics capabilities of SCALE within the Triton sequence. The workshop topics will include NEWT capabilities, Triton-based depletion calculations with both NEWT and Keno-VI, and lattice physics options within Triton. Ongoing application of Triton in HTGR analysis will also be presented. The workshop will be led by Dr. Mark DeHart of the Nuclear Science and Technology Division of Oak Ridge National Laboratory.

To reserve space for this workshop, please email your name and contact information with subject line “Triton Workshop” to scalehelp@ornl.gov. Participation will be limited by the size of the room.