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Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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Nuclear Science and Engineering
February 2025
Nuclear Technology
January 2025
Fusion Science and Technology
Latest News
Reboot: Nuclear needs a success . . . anywhere
The media have gleefully resurrected the language of a past nuclear renaissance. Beyond the hype and PR, many people in the nuclear community are taking a more measured view of conditions that could lead to new construction: data center demand, the proliferation of new reactor designs and start-ups, and the sudden ascendance of nuclear energy as the power source everyone wants—or wants to talk about.
Once built, large nuclear reactors can provide clean power for at least 80 years—outlasting 10 to 20 presidential administrations. Smaller reactors can provide heat and power outputs tailored to an end user’s needs. With all the new attention, are we any closer to getting past persistent supply chain and workforce issues and building these new plants? And what will the election of Donald Trump to a second term as president mean for nuclear?
As usual, there are more questions than answers, and most come down to money. Several developers are engaging with the Nuclear Regulatory Commission or have already applied for a license, certification, or permit. But designs without paying customers won’t get built. So where are the customers, and what will it take for them to commit?
N. P. Bhat, H. U. Borgstedt
Nuclear Technology | Volume 52 | Number 2 | February 1981 | Pages 153-161
Technical Paper | Fission Reactor | doi.org/10.13182/NT81-A32660
Articles are hosted by Taylor and Francis Online.
Electrochemical oxygen meters at Kernforschungszentrum Karlsruhe, Westinghouse Electric Company, and General Electric Company, with different reference systems (gold-air; platinum-air; and indium-In2O3) were tested and calibrated in static tests as well as in a sodium loop. The calibration in static tests was based on oxygen activities of the sodium-chromium-NaCrO2 system. In the loop the meters were calibrated on cold-trap temperatures and checked by chemical analyses of the residue of distilled sodium samples. Fair agreement has been found between the calibration in sodium, the oxygen activity of which was fixed by the chemical equilibrium of chromite formation, and the calibration based on the cold-trap temperature measured in the sodium loop. The meters with indium-In2O3 reference gave results in better agreement to theory at 550 and 500°C than the meters with air reference systems. The oxygen activity in sodium in equilibrium with NaCrO2 is very low; the calibration of oxygen meters based on this reaction gives a chance to apply the probes in the range of their highest sensitivity in highly purified sodium.
