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
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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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Nuclear Science and Engineering
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Latest News
ARG-US Remote Monitoring Systems: Use Cases and Applications in Nuclear Facilities and During Transportation
As highlighted in the Spring 2024 issue of Radwaste Solutions, researchers at the Department of Energy’s Argonne National Laboratory are developing and deploying ARG-US—meaning “Watchful Guardian”—remote monitoring systems technologies to enhance the safety, security, and safeguards (3S) of packages of nuclear and other radioactive material during storage, transportation, and disposal.
Tunc Aldemir
Nuclear Science and Engineering | Volume 155 | Number 3 | March 2007 | Pages 497-507
Technical Note | Mathematics and Computation, Supercomputing, Reactor Physics and Nuclear and Biological Applications | doi.org/10.13182/NSE07-A2680
Articles are hosted by Taylor and Francis Online.
Probabilistic dynamics (or continuous event tree approach) is a methodology used for the probabilistic risk assessment of systems where statistical dependence between failure events may arise because of indirect coupling through the controlled/monitored physical process and/or direct coupling through software/hardware/human intervention. Both the continuous and discrete time/space forms of the probabilistic dynamics frameworks assume that the set of possible trajectories describing the evolution of the system as a function of time in its state-space consists of measurable (and hence compact) subsets. Using a reduced-order boiling water reactor model, it is shown that this assumption may not be valid for systems of practical interest to nuclear engineering. The consequences of violating the measurability assumption on the probabilistic model accuracy are illustrated for the discrete time/state-space approach. Some guidelines for the choice of time/state discretization are also proposed.