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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.
R. W. Hockenbury, W. R. Moyer, R. C. Block
Nuclear Science and Engineering | Volume 49 | Number 2 | October 1972 | Pages 153-161
Technical Paper | doi.org/10.13182/NSE72-A35503
Articles are hosted by Taylor and Francis Online.
The neutron capture and fission cross sections of 240 Pu have been measured from 20 eV to 30 keV. Transmission measurements were also made from 30 to 500 eV. The capture data were normalized using the transmission results to minimize the uncertainty in absolute normalization. The average capture cross section has been determined from 6 to 30 keV. The s-wave average radiation width has been found to be (0.0295 ± 0.0015) eV. Resonance parameters to 500 eV and an s-wave strength function of (1.10 ± 0.27) × 10−4 have also been obtained. Subthreshold fission structure was observed up to 30 keV. The level spacing for subthreshold fission was found to be (710 ± 200) eV. Comparisons of all our results are made to previously published data.
