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Division Spotlight
Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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August 2025
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July 2025
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Latest News
Germany’s Unterweser completes removal of steam generators
All four steam generators at Germany’s Unterweser nuclear power plant have been removed from the reactor building, plant owner PreussenElektra has announced. The single-unit pressurized water reactor was shut down in 2011 as part of Germany’s decision to phase out nuclear energy. Decommissioning and dismantlement of the reactor began soon after PreussenElektra was granted a permit for the work in February 2018.
Technical Session|Methods
Monday, April 22, 2024|1:30–3:15PM PDT|Continental Ballroom 2
Session Chair:
Jaako Leppanen (VTT Technical Research Centre of Finland)
Alternate Chair:
Paolo Vinai (Chalmers Univ. Technology)
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Hobbes: Multigroup Cross Section Generation for Mixed-Architecture Computing Environments
1:30–1:50PM PDT
S.J. Douglass (Naval Nuclear Laboratory)
Paper
Understanding the Macroscopic Cross Section Treatment in Hybrid Continuous Energy and Multigroup Depletion Using the Shift Monte Carlo Code
1:50–2:10PM PDT
Vidor Lujan (Georgia Tech), Bailey Painter (Georgia Tech), Inhyung Kim (Univ. California, Berkeley), Massimiliano Fratoni (Univ. California, Berkeley), Thomas M. Evans (ORNL), Tara M. Pandya (ORNL), Dan Kotlyar (Georgia Tech)
Derivation of the History Variable Calculation for Macro-Depletion in Nodal Simulators
2:10–2:30PM PDT
Thomas Folk (Univ. Michigan), Brendan Kochunas (Univ. Michigan)
Initial Assessment of Online Cross Section Generation Capability of Griffin for Gas-Cooled Pebble-Bed Reactor
2:30–2:50PM PDT
Hansol Park (ANL), Yeon Sang Jung (ANL), Changho Lee (ANL), Yaqi Wang (INL), Javier Ortensi (INL)
Application of Expanded Transfer Functions for Predicting Coarse Mesh, One-Group Macroscopic Cross Sections in a 3D Realistic PWR Core
2:50–3:10PM PDT
Bailey Painter (Georgia Tech), Dan Kotlyar (Georgia Tech)
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