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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
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott 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
NRC v. Texas: Supreme Court weighs challenge to NRC authority in spent fuel storage case
The State of Texas has not one but two ongoing federal court challenges to the Nuclear Regulatory Commission that could, if successful, turn decades of NRC regulations, precedent, and case law on its head.
D. L. Smith
Nuclear Technology | Volume 11 | Number 1 | May 1971 | Pages 115-119
Technical Paper | Analysis | doi.org/10.13182/NT71-A30909
Articles are hosted by Taylor and Francis Online.
An equilibration method has been developed to measure accurately the activity of oxygen at low concentrations (<20 ppm) in liquid sodium. Vanadium wires are exposed to liquid sodium until the oxygen in solution in vanadium is in equilibrium with the active or free oxygen in sodium. The oxygen concentration in the vanadium detector is then measured by reliable techniques, and this value is related to the oxygen concentration in sodium by the equilibrium distribution coefficient. This method of analysis is specific for oxygen, and contamination problems associated with direct chemical analysis of low-oxygen sodium are eliminated. The accuracy of the method is ±15% in the range 0.5 to 15 ppm oxygen in sodium, and concentrations as low as 0.001 ppm are detectable.
