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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
May 2025
Nuclear Technology
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Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
M. Beller, D. Goellner, M. Steinberg
Nuclear Technology | Volume 1 | Number 4 | August 1965 | Pages 322-326
Technical Paper | doi.org/10.13182/NT65-A20529
Articles are hosted by Taylor and Francis Online.
An evaluation of the economics of producing ozone from oxygen in a system utilizing fission fragment energy is presented with a study of the design of such a system. The study covers a range of G values for ozone formation from 3 to 15 and chemonuclear reactor ozone concentrations from 10 parts/106 to 10% at an operating temperature of −20°C. A graphite-moderated nuclear reactor design, which utilizes a 2.5-µm thick U-Pd alloy foil as fuel elements, is employed. Ozone is separated by silica-gel adsorption; decontamination procedures are described. Investment and operating costs for the chemonuclear and conventional methods of ozone production are compared for an ozone production rate of 100 ton/d. It is concluded that the chemonuclear route becomes competitive with conventional ozonizers at a steady-state concentration of 0.1% ozone for a G value of 9 and at a concentration as low as 150 parts/106 for a G value of 15. The study indicates the need for research on fission fragment and radiation chemistry in the ozone-oxygen system at temperatures from 20°C to −78°C for determining the feasibility of these yields.