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Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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?
G. J. Bernstein, D. E. Grosvenor, J. F. Lenc, N. M. Levitz
Nuclear Technology | Volume 20 | Number 3 | December 1973 | Pages 200-202
Technical Note | Chemical Processing | doi.org/10.13182/NT73-A31358
Articles are hosted by Taylor and Francis Online.
A centrifugal contactor of unique design has been developed for solvent extraction processing of high-plutonium-content fuels. The unit has a vertically suspended rotor that has a 4-in. inside diameter and is 15 in. long (with a 12-in.-long separating zone). Aqueous and organic phases are fed into the annulus between the contactor casing and the spinning rotor and are mixed by skin friction. The mixture flows down the annulus and then up through an orifice in the bottom of the rotor. The phases are separated by centrifugal force as they flow up the inside of the rotor and are discharged at the top. Separating capacities (throughput) ranged from 4.5 gal/min at 2000 rpm to 15 gal/min at 3500 rpm. Essentially 100% stage efficiency was demonstrated in extraction and stripping of uranium between nitric acid and 30% tri-n-butyl phosphate in n-dodecane diluent. The basic annular-mixer design is suitable for contactors with larger or smaller diameters.
