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
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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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.
Yoshiaki Himeno, Kazuo Mukai, Tatsuro Iguchi, Ken Yamamoto, Fumio Nagai, Masao Fujita
Nuclear Technology | Volume 58 | Number 1 | July 1982 | Pages 84-89
Technical Paper | Material | doi.org/10.13182/NT82-A32961
Articles are hosted by Taylor and Francis Online.
A large cold trap with sodium inventory of ∼1.0 m3, which had been regenerated at high temperatures (i.e., 450 to 600°C) 16 times during its 6-yr life, was subjected to destructive examinations. Emphasis was placed on determination of material damage to the mesh wires and the compositional material due to the multi-time high temperature regenerations. With regard to the mesh wires, the results of examinations revealed that mechanical strength was significantly reduced due to selective leaching of metal elements such as nickel and chromium. Before the examination, formation of a crack or defect that could have been caused by stress corrosion was suspected in the stainless steel structural material. But no such crack or defect was found.