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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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Fusion Science and Technology
Latest News
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.
N. Baglan, R. Le Meignen, G. Alanic, F. Pointurier
Fusion Science and Technology | Volume 54 | Number 1 | July 2008 | Pages 243-247
Technical Paper | Environment and Safety | doi.org/10.13182/FST08-A1804
Articles are hosted by Taylor and Francis Online.
Tritium exists in environmental samples in three forms: (i) Tissue Free Water Tritium (TFWT) and associated with the organic matter (OBT) under two forms; (ii) bound to oxygen and nitrogen atoms into the material (EOBT); (iii) bound to carbon atoms into the material (NEOBT). The developed analytical procedure allows obtaining accurate and reproducible information for the various tritium fraction determinations.Aiming to follow the distribution and the integration of NE-OBT in the vicinity of a nuclear research centre down to environmental level the analytical procedure was optimized to reduce possible contamination during critical stages such as the E-OBT elimination. Therefore, a new process using steam was designed and investigated leading to promising results.A broad study was initiated to study potential impact of tritium on tree leaves sampled in the vicinity of a nuclear research centre within a radius of about 20 km. Moreover both plane tree and oak leaves have been sampled to establish the NE-OBT mapping. Therefore, for several locations they were sampled twofold for comparison. Appropriate statistical tests allow assessing that the type of tree does not influence the NE-OBT integration in our experimental conditions.
