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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. C. Biery, C. R. Cushing
Nuclear Technology | Volume 4 | Number 2 | February 1968 | Pages 109-120
Technical Paper and Note | doi.org/10.13182/NT68-A26337
Articles are hosted by Taylor and Francis Online.
The mass transfer of tantalum in Pu-Co-Ce melts was studied by gamma-scanning capsules containing radioactive tantalum in contact with the liquid metal. Eight experiments were run with melts of 5- and 8-g Pu/cm3 at temperatures from 700 to 750°C at the hot zones and with 25°C/in. of longitudinal temperature gradient. The results show all mass transfer rates in tantalum capsules to be < 1 mil/year and, in most cases, < 0.2 mil/year when the source and sink are not closely coupled. A carbon addition to the system appeared to be deleterious since, in one experiment with all capsule surfaces carburized, rates were accelerated by a factor of 10.
