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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.
F. D’Annucci, C. Sari, G. Schumacher
Nuclear Technology | Volume 35 | Number 1 | August 1977 | Pages 80-86
Technical Paper | Reactor | doi.org/10.13182/NT77-A31851
Articles are hosted by Taylor and Francis Online.
The fission-product elements molybdenum and ruthenium were added to uranium and uranium-plutonium oxide by a co-precipitation technique. Heat treatment of these materials in a simulated reactor thermal gradient causes migration and coagulation of the metals to form inclusions up to a maximum size of 10 m. Inclusions of large diameters between 5 and 10 µm do not migrate noticeably by diffusion. Their migration rate is different from that of pores in a temperature gradient.
