Nuclear Engineering Colloquium: Eva Davidson
Title: "CASL Ex-core Applications and Validation."
Eva Davidson is a reactor physics analysis engineer for Reactor Physics Group, Oak Ridge National Laboratory
Abstract
The Consortium for Advanced Simulation of Light Water Reactors (CASL) Virtual Environment for Reactor Applications (VERA) offers unique capabilities to combine high-fidelity in-core radiation transport with temperature feedback using MPACT and CTF with a follow-on fixed source transport calculation using the Shift Monte Carlo code to calculate pressure vessel flux/fluence, and detector responses. The novelty of this capability from an ex-core radiation transport perspective is in the detailed characterization of the source term in the reactor core at each user defined statepoint and the state-of-the-art hybrid transport techniques for variance reduction. VERA provides one of the most advanced reactor core simulation capabilities in the world, producing very detailed isotopic distributions in the fuel and a 3D pin-wise 51-group neutron flux distribution. These are developed through time-dependent following of reactor operation over large periods of time and are automatically calculated for any instantaneous statepoint conditions. The MPACT fission source is passed to Shift for transport to calculate ex-core quantities of interest by invoking variance reduction techniques. In addition, this capability in VERA also requires much less effort from the user than current industry methods. The seminar will cover the use of VERA to perform coupon irradiation, pressure vessel fluence, and detector response calculations.
Bio
Eva Davidson is a reactor physics analysis engineer in the Reactor Physics Group within the Reactor and Nuclear Systems Division (RNSD) at Oak Ridge National Laboratory (ORNL). Eva received a B.Eng in nuclear engineering (Honors with Highest Distinction) from the University of Ontario Institute of Technology, Canada in 2007. She received her M.S. and Ph.D. in nuclear engineering and radiological sciences in 2009 and 2013, from the University of Michigan with a specialization in fission and radiation transport theory. Since 2013 at ORNL, Eva has participated in several projects involving reactor ex-core modeling and simulation for the Consortium for Advanced Simulation of Light Water Reactors (CASL); fuel cycle modeling and simulation; reactor physics analysis of the High Flux Isotope Reactor for the HEU to LEU conversion project; modeling and simulation of Molten Salt Reactor systems, Fission-Fusion hybrid systems; and reactor pressure vessel fluence analyses.
NOTE: This lecture will be available as a webcast.
Wednesday, October 30, 2019 at 1:30pm to 2:30pm
Nuclear Engineering Building, 302
1412 Circle Drive Knoxville TN 37996
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