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
Robotics & Remote Systems
The Mission of the Robotics and Remote Systems Division is to promote the development and application of immersive simulation, robotics, and remote systems for hazardous environments for the purpose of reducing hazardous exposure to individuals, reducing environmental hazards and reducing the cost of performing work.
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?
Yakov Ben-Haim
Nuclear Technology | Volume 47 | Number 1 | January 1980 | Pages 110-118
Technical Paper | Chemical Processing | doi.org/10.13182/NT80-A32415
Articles are hosted by Taylor and Francis Online.
Control of the release of radioactive iodine is an important task of the air filtration system in a nuclear installation. The filtration efficiency of an active charcoal filter for methyl iodide is shown to decrease due to the poisoning of the filter by secondary materials in the gas stream. A model is developed that appears to reproduce the decrease in filtration efficiency. Lack of detailed information on the poison-filter interaction prevents definitive confirmation of the model The model facilitates the choice of the optimum values of certain micro-structural and operational parameters of the filter, to reduce the effect of secondary poisons on the filter and thereby to lengthen the usable life of the filter. The microstructural properties addressed by the model are catalyst pellet size, porosity, surface area per gram, and pore radius. The operational parameters of the filter are the gas transit time and the gas diffusivity in the catalyst pores as controlled by the gas temperature.
