ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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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February 2025
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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?
C. H. H. Chong, M. D. Prisc
Nuclear Technology | Volume 9 | Number 5 | November 1970 | Pages 667-672
Paper | Chemical Processing | doi.org/10.13182/NT70-A28741
Articles are hosted by Taylor and Francis Online.
Removal of polonium by spontaneous deposition onto bismuth powder (referred to as scrubbing) following dissolution of irradiated bismuth and denitration is the step normally employed in the processing scheme as a means of concentration from relatively dilute solutions. This separation and concentration, and to some extent purification, is achieved by allowing the solution, in high chloride-ion concentration, to flow through a fixed bed of bismuth powder. A variation of this process was investigated utilizing the agitation of the bismuth powder with an inert gas to effect a more intimate contact with the polonium. The effect of bismuth particle size (surface area), quantity of powder used, rate of polonium deposition, initial polonium concentration, and the manner and extent of agitation were studied. The results indicated quantitative yields were realized by this modified process.
