ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
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
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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!
Latest Magazine Issues
Mar 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
May 2025
Nuclear Technology
April 2025
Fusion Science and Technology
Latest News
El Salvador: Looking to nuclear
In 2022, El Salvador’s leadership decided to expand its modest, mostly hydro- and geothermal-based electricity system, which is supported by expensive imported natural gas and diesel generation. They chose to use advanced nuclear reactors, preferably fueled by thorium-based fuels, to power their civilian efforts. The choice of thorium was made to inform the world that the reactor program was for civilian purposes only, and so they chose a fuel that was plentiful, easy to source and work with, and not a proliferation risk.
Workshop
Sunday, April 21, 2024|8:00AM–12:00PM PDT|Franciscan B
Price: $49
Westinghouse Electric Company recognizes the importance of supporting students pursuing a career in reactor physics. For this reason, Westinghouse will be sponsoring the first 100 student workshop registrants by covering their fees. Contact registrar@ans.org for a discount code before registering. Limited space available in each workshop. Once these seats are filled, you will be put on a waitlist. You must request a discount code before registering. No refunds will be made if you do not contact us before registering.
Organized by Joshua Hanophy (INL), Hansol Park (ANL) through the Advanced Reactor Technology and Nuclear Energy Advanced Modeling and Simulation Programs
The goal of the training session is to gain familiarity modeling the running-in phase of pebble bed reactors (PBRs) with the MOOSE-based tools Griffin and Pronghorn. Griffin includes capabilities for neutronics and depletion calculations and provides power densities to Pronghorn. Pronghorn uses the power densities to calculate temperatures using a porous medium flow model and user input thermal-hydraulic conditions as well as simplified models for the pebble bed reactor structures. Griffin can use pregenerated multigroup libraries for cross sections or a new feature that enables using its own cross sections generated online. This workshop will provide hands-on exercises for online cross section generation, run-in phase modeling with Griffin, thermal-hydraulics modeling with Pronghorn, and multiphysics running-in modeling including a control rod withdrawal event from a non- equilibrium core.
The training will be conducted via the INL High Performance Computing (HPC) center. Trainees can either apply for: A) an INL HPC account and code licenses directly via (https://inl.gov/ncrc/) or B) temporary INL HPC account and temporary access to the codes. Either way, details on the INL’s Nuclear Computational Resource Center training signup process will be shared with registered participants. Trainees must bring their own laptops. Details on the process will be shared with registered participants. Note the following cutoffs for INL HPC account and license applications:
Cutoff for U.S.A. nationals INL HPC account and licenses is April 15th, 2024.
Cutoff for foreign nationals INL HPC account and licenses is March 1st, 2024.
Agenda:
8:00 – 8:30 am (30 m): Overview of the PBR design & computer setup
8:30 – 9:30 am (60 m): Theory and hands-on online cross section generation for PBR
9:30 – 10:30 am (60 m): Hands-on neutronics running-in phase with Griffin
10:30 – 10:45 am (15 m): Coffee break
10:15 – 11:00 am (45 m): Hands-on thermal-hydraulics modeling with Pronghorn
11:30 – 12:00 am (30 m): Hands-on multiphysics running-in calculation / the control rod withdrawal event with a non-equilibrium core
To join the conversation, you must be logged in and registered for the meeting.
Register NowLog In