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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.
C. L. Angerman
Nuclear Technology | Volume 17 | Number 3 | March 1973 | Pages 261-274
Technical Paper | Radioisotope | doi.org/10.13182/NT73-A31269
Articles are hosted by Taylor and Francis Online.
Satisfactory performance of superalloy capsules at conditions typical of those expected in radioisotopic heat sources was demonstrated. Capsules of Hastelloy X, Hastelloy C, InconeI 600, and Haynes 25 were heated in air at 850 to 1000°C; those containing unirradiated cobalt metal were tested for up to 39 400 h (4.5 yr), and those containing irradiated cobalt metal for up to 19 500 h (2.2 yr). These tests indicated that Hastelloy X is the best encapsulating material for these applications , and Hastelloy C is a good alternative. General agreement of the data on inactive and active capsules indicates that the performance of active capsules is not significantly affected by the radiation field or the buildup of nickel from radioactive decay of the cobalt.
