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Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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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How to talk about nuclear
In your career as a professional in the nuclear community, chances are you will, at some point, be asked (or volunteer) to talk to at least one layperson about the technology you know and love. You might even be asked to present to a whole group of nonnuclear folks, perhaps as a pitch to some company tangential to your company’s business. So, without further ado, let me give you some pointers on the best way to approach this important and surprisingly complicated task.
Harold F. McFarlane
Nuclear Science and Engineering | Volume 49 | Number 4 | December 1972 | Pages 438-449
Technical Paper | doi.org/10.13182/NSE72-A22563
Articles are hosted by Taylor and Francis Online.
We have performed integral measurements of pulsed neutron distributions in graphite stacks ranging in buckling from 0.0051 to 0,018 cm−2 and have compared the results to a modeled theoretical computation. Based on these measurements, we have defined a critical buckling of 0.0085 cm−2 above which the decay of the neutron pulse is non-exponential. Non-exponential decay was observed in six graphite stacks which exceeded the critical buckling, while in three larger assemblies the decay was exponential over a significant part of the total measuring interval. From measurement of the time-dependent spatial distribution in four graphite assemblies, we were able to compute the effective decay constants of the two lowest order spatial modes as well as the time-dependent effective wave number of the distributions. We have interpreted the failure of the neutron distribution to establish either an exponential decay or an asymptotic spatial distribution in terms of recent theoretical work in this area.
