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Division Spotlight
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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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Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
18th International Probabilistic Safety Assessment and Analysis (PSA 2023)
Workshop
Sunday, July 16, 2023|12:00–5:00PM EDT|Marriott Knoxville Downtown
Max. Attendees: 50
Description: Dynamic PRA methodologies explicitly account for the time element in probabilistic system evolution and heavily incorporate plant analysis/simulator tools to model possible dependencies between failure events that may arise from hardware/software/firmware/process/ human interactions. Dynamic PRA methodologies can also quantify the effects of phenomenological variability and model uncertainties on the consequences of upset conditions. They can benefit the PRA modeling of passive systems, including the representation of aging effects and digital instrumentation and control systems.
The workshop's objective is to provide a perspective on dynamic PRA methodologies, the circumstances under which they may be needed, and the existing challenges with their deployment. The use of some of the available software tools will be demonstrated.
Agenda
12:00 - 12:10 pm
Welcome and Introduction of Participants – Askin Guler Yigitoglu
12:10 - 12:25 pm
Dynamic PRA: A Historical Perspective by Tunc Aldemir (OSU) and Askin Guler Yigitoglu (ORNL)
12:25 - 12:45 pm
Current Activities and Methods by Valentin Rychkov and Claudia Picoco (EDF)
12:45 - 01:05 pm
01:05 - 01:45 pm
RAVEN Overview by Mohammad G. Abdo (INL)
01:45 - 02:30 pm
EMRALD Overview by Robby Christian (INL)
2:30 - 2:50 pm
Break
2:50 - 03:30 pm
EMRALD Demonstration by Robby Christian (INL)
3:30 - 4:15 pm
RAVEN LWR Demonstration by Mohammad G. Abdo (INL)
4:15 - 4:30 pm
DPRA for Advanced Reactors by Askin Guler Yigitoglu (ORNL)
4:30 - 5:00 pm
Wrap-up and Open Discussion
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Attachment — Statecharts as a Dynamic Method for PRA_Abstract
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