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Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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!
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Mar 2025
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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.
August 25, 2023|10:00–11:30AM (11:00AM–12:30PM EDT)
Available to All Users
The American Nuclear Society hosted this special event featuring a discussion on the blockbuster film "Oppenheimer" with representatives from Los Alamos National Laboratory. Led by Lab Director Thom Mason, a team of LANL representatives took you behind the scenes and discussed the lab's involvement in the film, what the movie got right or wrong, and the legacy and lasting impact of Oppenheimer on LANL.
Panelists
Alan CarrSenior Historian/Program Manager,Los Alamos National Laboratory
Mark ChadwickChief Scientist & Chief Operating Officer for the Weapons Physics Associate Laboratory Directorate, ALDX,Los Alamos National Laboratory
Shane FogertyResearch Scientist,Eularian Applications Group,Los Alamos National Laboratory
Anna LlobetResearch Scientist, Safety and Surety Group, Los Alamos National Laboratory;Vice-chair,J Robert Oppenheimer Memorial Committee
Thom MasonLab Director,Los Alamos National Laboratory
Moderator
Craig PiercyExecutive Director/CEO,American Nuclear Society
Bios
Alan Carr
Alan Carr currently serves as a Program Manager and the Senior Historian for Los Alamos National Laboratory. During his tenure as a Laboratory historian, which began in 2003, Alan has produced several publications and lectures pertaining to the Manhattan Project, nuclear testing history, and the historical evolution of LANL. He has lectured for numerous professional organizations and has been featured as a guest on many local, national, and international radio and television programs. Before coming to Los Alamos, Carr completed his graduate studies at Texas Tech University.
Mark Chadwick
Mark Chadwick is Chief Scientist & Chief Operating Officer for the Associate Laboratory Directorate for Weapons Physics at Los Alamos National Laboratory. He has worked at Los Alamos for thirty years.
Chadwick's research career is in nuclear science. He chairs the national collaboration that oversees the development of ENDF (Evaluated Neutron Data Files -- evaluation committee) — the USA's cross sections that are widely used in neutronics simulations. He has 250 publications of which over 110 are in refereed research journal papers.
Chadwick is a Los Alamos National Laboratory Fellow, a Fellow of the American Physical Society, and is a recipient of the DOE's E.O Lawrence Award. He also leads the Applied Nuclear Science and Engineering (ANSE) component of Los Alamos' nuclear pillars, helping coordinate lab-wide research in theory, experiment, and simulation.
Shane Fogerty
Shane Fogerty is a dedicated method actor starring in the background of the critically-acclaimed film Oppenheimer. To prepare for this role, Shane earned his PhD in Physics and Astronomy from the University of Rochester in 2017 before joining Los Alamos National Laboratory (LANL) as a postdoc. As a staff scientist at LANL in the X Computational Physics Division, he works on large-scale scientific code simulations, further enhancing his ability to portray a scientist on screen.
Anna Llobet Megias
Anna Llobet Megias is an experimental physicist who joined the Lab 22 years ago in the Materials Science and Technology division. She has worked at the Los Alamos Neutron Science Center for nearly two decades doing small-scale experiments with neutrons and dynamic experiments with proton beams. She currently works in the Lab’s Safety and Surety group, where she helps ensure the safety of the United States’ nuclear weapons by combining small-scale experiments and numerical simulations. She also serves as the vice chair of the J. Robert Oppenheimer Memorial Committee, which for the past 52 years has honored Oppenheimer’s intellectual and ethical legacy through advocacy and fundraising.
Thom Mason
Thom Mason is the President and CEO of Triad National Security, LLC (Triad) and serves as the Director of Los Alamos National Laboratory. Prior to joining Los Alamos, Mason was the Senior Vice President for Global Laboratory Operations at Battelle Memorial Institute where he had responsibility for governance and strategy across the six National Laboratories that Battelle manages or co-manages.
Prior to joining Battelle, Mason worked at Oak Ridge National Laboratory (ORNL) for 19 years, including 10 years as the Laboratory Director. Before becoming Laboratory Director, he was Associate Laboratory Director (ALD) for Neutron Sciences, ALD for the Spallation Neutron Source (SNS), and Director of the Experimental Facilities Division.
Mason moved to ORNL from the University of Toronto where he was a faculty member in the Department of Physics and previously worked as a Senior Scientist at Risø National Laboratory and a Postdoc at AT&T Bell Laboratories. For the past 30 years, he has been involved in the design and construction of scientific instrumentation and facilities and the application of nuclear, computing, and materials sciences to solve important challenges in energy and national security.