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The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
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Retrieval of nuclear waste canisters from a borehole
Borehole disposal of spent nuclear fuel (SNF) and high-level waste (HLW) uses off-the-shelf directional drilling technology developed and commercialized by the oil and gas sectors. It is a technology that has been gaining traction in recent years in the nuclear industry. Disposal can be done in one or more boreholes (including an array) drilled into suitable sedimentary, igneous, or metamorphic host rocks. Waste is encapsulated in specialized corrosion-resistant canisters, which are placed end to end in disposal sections of relatively small-diameter boreholes that have been cased and fluid-filled. After emplacement, the vertical access hole is plugged and backfilled as an engineered barrier.
H. Matsui, O. Motojima, A. Sagara, T. Muroga, A. Kohyama, S. Tanaka, T. Terai, Dai-Kai Sze
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 1293-1298
Power Plant Design and Technology | doi.org/10.13182/FST96-A11963126
Articles are hosted by Taylor and Francis Online.
Force-Free Helical Reactor. FFHR. is a conceptual design of helical fusion power reactor. Flibe is chosen as the coolant/ breeding material in this reactor mainly because of safety considerations. Two types of structural materials, i.e. ferritic steel and vanadium alloys were closely examined. Compatibility of these materials with Flibe is one of the largest issues for the selection of materials. It has been concluded that both systems using Flibe as coolant are feasible provided that the chemistry of Flibe is appropriately controlled.