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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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Las Vegas, NV|Mandalay Bay Resort and Casino
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Latest News
Direct waste transfer process quickens at Savannah River Site
The Department of Energy Office of Environmental Management’s liquid waste contractor at the Savannah River Site this month marked the first direct transfer of decontaminated waste from the Salt Waste Processing Facility (SWPF) to the Saltstone Production Facility (SPF). This is a new step in optimizing waste processing, according to the DOE.
W. A. Houlberg, S. E. Attenberger
Fusion Science and Technology | Volume 26 | Number 3 | November 1994 | Pages 316-321
International Thermonuclear Experimental Reactor (ITER) | Proceedings of the Eleventh Topical Meeting on the Technology of Fusion Energy New Orleans, Louisiana June 19-23, 1994 | doi.org/10.13182/FST94-A40179
Articles are hosted by Taylor and Francis Online.
The relationships between fueling (gas injection and pellets of various sizes and velocities), pumping in the divertor chamber (constrained by fuel processing and divertor design), core density (constrained by the desired fusion power and helium ash accumulation), separatrix density (constrained by divertor operation and density limits) and plasma confinement models are examined for the International Engineering Tokamak Reactor (ITER) Engineering Design Activity (EDA) for guidance in the definition of design requirements for the pumping and fueling systems. Various combinations of gas and pellet injection are found to meet the constraints for operation at 1500 MW of fusion power and 1 bar·l/s (5.3 × 1022 atoms/s) of DT pumping. Very low pumping reduces fuel processing requirements, but can lead to excessive helium accumulation depending on the particle transport properties. Isotopic tailoring of the fuel sources, e.g., 20–30% of the input fuel stream as tritium pellets and the rest as deuterium gas, can maintain the core fuel species mixture in the optimum range for fusion production (at least a 40–60 mixture) while reducing the tritium concentration in the edge region to 20–30%. This should reduce the tritium inventory in the plasma facing components, since that is typically governed by the fuel density mix near the plasma edge. A high density, low temperature ignited regime supported by deep pellet injection is shown to exist under some low confinement conditions.