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Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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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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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.”
Ernest R. Venerus and M. Necati Ozisik
Nuclear Science and Engineering | Volume 26 | Number 1 | September 1966 | Pages 122-130
Technical Paper | doi.org/10.13182/NSE66-A17195
Articles are hosted by Taylor and Francis Online.
Deposition of fission products from an isothermal laminar gas stream to the surfaces of a circular tube is theoretically investigated for a source releasing a radioactive precursor into the gas stream at a uniform rate at the origin. A slug velocity profile is assumed. In solving the partial differential equations of the problem, two different models are examined as boundary conditions to couple the equations. The first model, which is referred to as the Resistance Model, is applicable when the surface concentration of the deposited precursor is small or removal of particles from the surface is negligible; and it is equivalent to assuming a fictitious unknown resistance to mass transfer at the wall surface. The boundary value problem of mass transfer based on the resistance model has been solved for the transient conditions and analytical relations are derived for the concentration of fission products in the gas stream and on the tube surface. In the second model, which is referred to as the Transport Model, a more detailed account is taken of the actual physical transport process in the immediate vicinity of the conduit surface. The removal of precursor from the surface is related to the adsorption energy of the precursor and the temperature of the surface. Removal from the gas stream in the immediate vicinity of the conduit surface is described by a stream removal coefficient which is obtained from the kinetic theory of gases. The boundary value problem based on the transport model has been solved for the steady state condition only. The transport model has been applied to experiments on deposition of radioactive isotopes from laminar gas streams and adsorption energies for some radioactive isotopes are determined. Correlation of the transport model with experiments provides a useful means for obtaining the adsorption energies of radioactive isotopes on metal surfaces.