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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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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.
J. Halperin, R. W. Stoughton, C. V. Ellison, D. E. Ferguson
Nuclear Science and Engineering | Volume 1 | Number 1 | March 1956 | Pages 1-3
Technical Paper | doi.org/10.13182/NSE56-A17653
Articles are hosted by Taylor and Francis Online.
Thorium metal was irradiated in the thermal neutron flux of the Low Intensity Test Reactor and of a graphite reactor. From mass spectrographic analysis of the U234 content and assumption of an effective capture cross section (including epithermal as well as thermal neutron capture) of 8.0 barns for Th232, the effective neutron capture cross section of Pa233 for thermal reactor neutrons was determined to be 140 ± 20 barns.
