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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.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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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Molten salt research is focus of ANS local section presentation
The American Nuclear Society’s Chicago–Great Lakes Local Section hosted a presentation on February 27 on developments at the molten salt research reactor at Abilene Christian University’s Nuclear Energy Experimental Testing (NEXT) Lab.
A recording of the presentation is available on the ANS website.
Wallace Davis, Jr.
Nuclear Science and Engineering | Volume 14 | Number 2 | October 1962 | Pages 174-178
Technical Paper | doi.org/10.13182/NSE62-A28117
Articles are hosted by Taylor and Francis Online.
Some of the published data on the extraction of nitric acid from aqueous solutions, containing ≦5 M acid, by tributyl phosphate-hydrocarbon diluent solutions were tested for their agreement with a mathematical description presented in Part 1. In all cases the agreement of the literature data with this description ranged from adequate to very good, thereby adding support to the interpretation of the parameters of the equation in terms of the equilibrium constant, , for the extraction reaction and the two activity coefficients y′T and . The form of the mathematics suggests that TBP and TBP·H2O are indistinguishable in their reaction with HNO3 and that y′T is an approximate mean molar activity coefficient of these two in the water-saturated system; similarly, is an approximate mean molar activity coefficient of the two species TBP·HNO3 and TBP·HNO3H2O. The quantity has a value of ∼1.5 in molar units for diluent-free TBP; its extrapolated value in the pure diluent Amsco 125-82, or odorless kerosene, is ∼0.23, while its value in n-hexane is ∼0.27.
