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
Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Rudolf Avenhaus
Nuclear Science and Engineering | Volume 86 | Number 3 | March 1984 | Pages 275-282
Technical Paper | doi.org/10.13182/NSE84-A17556
Articles are hosted by Taylor and Francis Online.
The present state of the evaluation of material balance data in the framework of international nuclear material safeguards is reviewed. The safeguards objectives, laid down qualitatively in the model agreement of the International Atomic Energy Agency, are formulated quantitatively in statistical terms as high probability of detection and short expected detection time in case of diversion. According to these objectives, the analysis consists of two parts: In the first part, a fixed reference time containing a given number of inventory periods is considered. Here, the optimal decision procedure can be determined explicitly. In the second part, an infinite reference time consisting of inventory periods of given lengths is considered. Here, only a general framework for the optimal decision procedure can be given so far; therefore, plausible procedures are discussed.