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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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Deep Space: The new frontier of radiation controls
In commercial nuclear power, there has always been a deliberate tension between the regulator and the utility owner. The regulator fundamentally exists to protect the worker, and the utility, to make a profit. It is a win-win balance.
From the U.S. nuclear industry has emerged a brilliantly successful occupational nuclear safety record—largely the result of an ALARA (as low as reasonably achievable) process that has driven exposure rates down to what only a decade ago would have been considered unthinkable. In the U.S. nuclear industry, the system has accomplished an excellent, nearly seamless process that succeeds to the benefit of both employee and utility owner.
R. J. Neuhold, K. O. Ott
Nuclear Science and Engineering | Volume 39 | Number 1 | January 1970 | Pages 14-24
Technical Paper | doi.org/10.13182/NSE70-A21167
Articles are hosted by Taylor and Francis Online.
The space-energy synthesis approach has been improved by employing reaction rate weighting, by the use of realistic trial functions, and by deriving a more general analytical solution for the synthesis equations which includes the necessary case of complex B2. The use of reaction rates as weight functions and physically realistic trial functions made it possible to reduce the error of the space-energy synthesis method to such small values that its application in routine calculations of neutron spectra in fast reactors may be considered. The error reduction as compared to previous versions was typically a factor of 100 in δk and a factor of 20 in quantities which are sensitive to the nonseparability of space and energy. All cases with accurate results required a complex B2 in the blanket region as compared to real B2 for results with larger inaccuracies.
