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.
Thomas E. Blue, T. Courtney Roberts, Rolf F. Barth, Joseph W. Talnagi, Fazlul Alam
Nuclear Technology | Volume 77 | Number 2 | May 1987 | Pages 220-226
Technical Paper | Radioisotopes and Isotope Separation | doi.org/10.13182/NT87-A33986
Articles are hosted by Taylor and Francis Online.
Calibration curves are determined for measuring the concentration of 10B in the blood of rats using an autoradiographic procedure, with the polycarbonate solid-state nuclear track detector CR-39 and an image analysis system for automatic track counting. The calibration curves indicate that for the etch procedure used, the nitrogen concentration in the blood is an important interfering input for 10B concentration measurements. By discriminating against small tracks, the sensitivity to the blood nitrogen concentration can be reduced to the point that a variation in the nitrogen weight fraction of 0.01 gN/g blood causes a variation in the predicted 10B concentration of 0.3 µg 10B/ml blood.
