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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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!
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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.
G. Traxler, A. Chalupka, R. Fischer, B. Strohmaier, M. Uhl, H. Vonach
Nuclear Science and Engineering | Volume 90 | Number 2 | June 1985 | Pages 174-185
Technical Paper | doi.org/10.13182/NSE85-A17675
Articles are hosted by Taylor and Francis Online.
The energy and angular distributions of the protons from the 93Nb(n, xp) reactions were investigated by means of the Vienna multitelescope system. Whereas total hydrogen production cross sections are in fair agreement with previous results, considerable deviations from a previous measurement of the shape of the angle-integrated proton spectrum have been found. No other detailed measurements of the angular distributions have as yet been reported. The angle-integrated results are compared with calculations based on the statistical model of nuclear reactions, including precompound processes. It is shown that the proton emission spectrum can be described within this model if the usual pairing correction is also used for the exciton state densities within precompound calculations and otherwise a set of parameters which gives an adequate description of all other neutron-induced reactions of 93Nb. The angular distributions, which show a strongly energy-dependent forward-backward asymmetry, are compared to the results of a phenomenological model and to those of direct reaction theory for continuum cross sections.