Initial Activation Assessment for ARIES Compact Stellarator Power Plant
- University of Wisconsin, Fusion Technology Institute (United States)
As the safety assessment frequently requires knowledge of the activation parameters, we estimated the highest possible activity, decay heat, and waste disposal rating on the time scale after shutdown for the compact stellarator power plant ARIES-CS. We selected two widely different systems employing SiC/SiC composites and low-activation ferritic steel (FS) as structural materials. Our results show that components of both systems qualify as Class C low-level waste (LLW) at the end of a 100 y storage period following the decommissioning of the plant. The SiC blanket, vacuum vessel, and magnet offer very low waste disposal rating to the extent that a Class A LLW seems achievable for these components. On this last point, we discussed the split between the Class A and Class C wastes, emphasizing our motivation to lower the level of ARIES-CS radioactive waste.
- OSTI ID:
- 20849905
- Journal Information:
- Fusion Science and Technology, Vol. 47, Issue 3; Other Information: Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/; Country of input: International Atomic Energy Agency (IAEA); ISSN 1536-1055
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CONTAINERS
DECOMMISSIONING
FERRITIC STEELS
LOW-LEVEL RADIOACTIVE WASTES
MAGNETS
RADIOACTIVATION
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE STORAGE
RISK ASSESSMENT
SHUTDOWN
SILICON CARBIDES
STELLARATORS
THERMONUCLEAR POWER PLANTS
THERMONUCLEAR REACTOR MATERIALS