ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Bernd Grambow, R. S. Forsyth, Lars O. Werme, Jordi Bruno
Nuclear Technology | Volume 92 | Number 2 | November 1990 | Pages 204-213
Technical Paper | Nuclear Fuel | doi.org/10.13182/NT90-A34471
Articles are hosted by Taylor and Francis Online.
Observations on the mechanism of oxidation of UO2 in air and results from X-ray photoelectron spectroscopy surface analyses of UO2 electrodes exposed to aqueous solutions show that the dissolving solid under oxic conditions is essentially U3O7 formed by oxygen diffusion on the UO2 surface. Saturation effects with respect to U3O7 can be of importance for the overall reaction rate if oxygen transport to the dissolving surface is limited. The release of soluble radionuclides in solid solution with the UO2 matrix appears to be limited by the mass transfer rates for the conversion of U3O7 to alteration products such as schoepite. The rates of 90Sr and 137Cs release decrease with the square root of time under uranium-saturated conditions. This time dependence may be explained by either grainboundary diffusion or by oxygen diffusion through the alteration product phase.
