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
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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!
Latest Magazine Issues
May 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
June 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
T. Kakuta, S. Konishi, Y. Kawamura, M. Nishi, T. Suzuki
Fusion Science and Technology | Volume 39 | Number 2 | March 2001 | Pages 1083-1087
Tritium | doi.org/10.13182/FST01-A11963388
Articles are hosted by Taylor and Francis Online.
Electrochemical properties of the ceramic protonic conductor cell were investigated to evaluate its feasibility of hydrogen pumping for the purpose of tritium extraction in fusion fuel system. Experiments were performed at 873~1073K. One side of the cell was exposed to pure hydrogen and the other was exposed to 0.01~10 vol. % of hydrogen balanced with helium. Static and dynamic hydrogen pumping properties of the cell were evaluated. Electromotive force generated between two electrodes by the difference of hydrogen concentration was measured as static characteristics. In the region of the ratio of hydrogen partial pressure up to 100, the electrochemical potential driven by the difference of hydrogen partial pressure agreed well with the theoretical values derived from Nemst's law. The hydrogen pumping capacity was measured as the current density with applied DC. Hydrogen was selectively transferred at the current density of 7mA/cm2 at 873K and 9mA/cm2 at 973K, which satisfy our projected requirement (above 5mA/cm2) for applying to the blanket tritium recovery system. Voltage-induced degradation of the cell material accompanied with water vapor generation was observed, and voltage region to avoid this degradation was identified.