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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. Gehrke, R. G. Helmer, C. W. Reich
Nuclear Science and Engineering | Volume 70 | Number 3 | June 1979 | Pages 298-306
Technical Paper | doi.org/10.13182/NSE79-A20151
Articles are hosted by Taylor and Francis Online.
The emission probability of the 312-keV gamma ray from the decay of 27-day 233Pa has been measured. A 4π beta-gamma coincidence counting system was used to determine the 233Pa sample disintegration rates, and Ge(Li) spectrometers were used to measure the gamma-ray emission rates. The resulting value for the emission probability is Iγ (312 keV) = (38.6 ± 0.5) photon/100 decays. The relative intensities of the K x rays and gamma rays emitted in the decay of 233Pa were also measured.
