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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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.
Jungsook Clara Wren, Chris J. Moore
Nuclear Technology | Volume 94 | Number 2 | May 1991 | Pages 252-261
Technical Paper | Advances in Reactor Accident Consequence Assessment / Material | doi.org/10.13182/NT91-A34546
Articles are hosted by Taylor and Francis Online.
The effect of various contaminants, namely NO2, SO2, 2-butanone [methyl-ethyl-ketone (MEK)], and NH3, on the radioiodine removal efficiency of triethyl-enediamine (TEDA)-impregnated charcoal filters has been studied, and an attempt was made to characterize and quantify the weathering process of TEDA charcoal by these contaminants. The effects of the contaminants on the CH3I removal efficiency of TEDA charcoal under dry and humid conditions are described. Based on our results, the efficiency of TEDA charcoal is degraded most by NO2 and SO2, NH3 has a negligible effect, and MEK produces a mild degradation. The degree of degradation parallels the contaminant’s ability to be chemisorbed on the TEDA impregnant. The combined effect of water vapor and a contaminant on the charcoal efficiency is different for each contaminant. Nitrogen dioxide adsorbed under dry conditions is more effective in degrading the CH3I removal efficiency of the charcoal than when adsorbed under humid conditions. On the other hand, a completely opposite result is observed for SO2. The MEK contaminant behaves similarly to SO2, but the effect of humidity was less significant than for SO2. Ammonia has no effect on the efficiency of the charcoal regardless of humidity.
