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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.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Securing the advanced reactor fleet
Physical protection accounts for a significant portion of a nuclear power plant’s operational costs. As the U.S. moves toward smaller and safer advanced reactors, similar protection strategies could prove cost prohibitive. For tomorrow’s small modular reactors and microreactors, security costs must remain appropriate to the size of the reactor for economical operation.
R. J. M. Konings, J. L. Kloosterman, J. A. Hendriks, H. Gruppelaar
Nuclear Science and Engineering | Volume 128 | Number 1 | January 1998 | Pages 70-75
Technical Paper | doi.org/10.13182/NSE98-A1946
Articles are hosted by Taylor and Francis Online.
Within the frame of the EFTTRA (Experimental Feasibility of Targets for TRAnsmutation) cooperation, rods of 99Tc metal are irradiated in the Petten High Flux Reactor for 193 effective full power days, during which ~6% of the 99Tc is transmuted to the stable 100Ru. The radial and axial ruthenium distributions in one of the rods are measured by electron probe microanalysis. In the radial direction, the ruthenium concentration strongly increases in the outer rim of the sample, while the axial distribution shows little variation. The average ruthenium concentration, as measured by isotope dilution mass spectrometry, is (6.4 ± 0.2)% at 5 mm from the bottom of the rod and (6.1 ± 0.2)% at 5 mm from the top. The ruthenium concentrations calculated by the KENO three-dimensional Monte Carlo code, 6.1% at 5 mm from the bottom of the rod and 5.7% at 5 mm from the top, are in reasonable agreement with the measured ones. However, the calculated radial distribution of the ruthenium concentration does not agree with the measurements. The radial profile calculated by the MCNP Monte Carlo code, which uses a pointwise cross-section library, agrees much better with the measurements.