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
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
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
May 2025
Nuclear Technology
April 2025
Fusion Science and Technology
Latest News
First astatine-labeled compound shipped in the U.S.
The Department of Energy’s National Isotope Development Center (NIDC) on March 31 announced the successful long-distance shipment in the United States of a biologically active compound labeled with the medical radioisotope astatine-211 (At-211). Because previous shipments have included only the “bare” isotope, the NIDC has described the development as “unleashing medical innovation.”
Glen R. Longhurst, Alex Kratville
Fusion Science and Technology | Volume 66 | Number 3 | November 2014 | Pages 385-393
Technical Paper | doi.org/10.13182/FST14-801
Articles are hosted by Taylor and Francis Online.
A simple laboratory experiment was constructed to demonstrate in a classroom setting hydrogen permeation under conditions typical of some nuclear applications. The goal was to allow students to find both solubility and diffusivity parameters for hydrogen moving through commercial stainless steel tubing. The purpose of the present work is to compare test results from this laboratory experiment with results from others to validate the experiment. Hydrogen mixed with argon was admitted to a heated test chamber containing a coiled Type 316 stainless steel tube. Pure argon sweep gas was passed through the tube to a process-gas mass spectrometer where composition transients of pertinent gas species were recorded. Fits of a theoretical transient model to the experimental data gave values of both diffusivity and solubility of hydrogen in the stainless steel tube. Tests were conducted at hydrogen partial pressures ranging from 1.7 to 83 kPa and tube temperatures from 636 to 770 K. The form of the permeation transient data was fit well by a classical theoretical model. Observed values of diffusivity and solubility of hydrogen in the stainless steel from these transients were similar to literature values with some notable differences. Evidence of permeation delay due to interference by the diluting Ar was observed. Limitations of the experimental system are discussed.
