Effect of blanket structure on tritium breeding ratio in fusion reactors
Effects of blanket composition, including materials and their thicknesses, on the tritium breeding ratio in tokamak fusion reactors are investigated for the Li/sub 2/O blanket having a separable first wall. The sensitivities of the breeding ratio to the thicknesses of the materials for the first wall are estimated as follows (unit: T /SUB BR/ /cm): S /SUB SiC/ = -0.05, S /SUB Cu/ = -0.13, S /SUB Al/ = -0.04, S /SUB SS/ = -0.03, S /SUB He/ = 0.0, S /SUB D2O/ = -0.02, S /SUB H2O/ = -0.09. From these results, aluminum and stainless steel are seen as suitable for such first-wall structural materials as cooling tubes, and heavy water is appropriate for the coolant of the first wall. The lead multiplier of 5-cm thickness is used along with Li/sub 2/O, without /sup 6/Li enrichment, as the tritium breeding material. The tritium breeding ratio of the blanket is estimated as 1.08.
- Research Organization:
- Hitachi Ltd.
- OSTI ID:
- 6186006
- Journal Information:
- Nucl. Technol./Fusion; (United States), Journal Name: Nucl. Technol./Fusion; (United States) Vol. 4:3; ISSN NTFUD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700201* -- Fusion Power Plant Technology-- Blanket Engineering
ALKALI METAL COMPOUNDS
ALLOYS
ALUMINIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BREEDING BLANKETS
BREEDING RATIO
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CHROMIUM ALLOYS
CONVERSION RATIO
COOLING SYSTEMS
COPPER
CORROSION RESISTANT ALLOYS
ELEMENTS
ENERGY SYSTEMS
FIRST WALL
FLUIDS
GASES
HEAVY WATER
HELIUM
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LIGHT NUCLEI
LITHIUM COMPOUNDS
LITHIUM OXIDES
MATERIALS
MATERIALS TESTING
METALS
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
RADIOISOTOPES
RARE GASES
REACTOR COMPONENTS
RECOVERY
SILICON CARBIDES
SILICON COMPOUNDS
STAINLESS STEELS
STEELS
TESTING
THERMONUCLEAR REACTOR COOLING SYSTEMS
THERMONUCLEAR REACTOR MATERIALS
THERMONUCLEAR REACTOR WALLS
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
TRANSITION ELEMENTS
TRITIUM
TRITIUM RECOVERY
WATER
YEARS LIVING RADIOISOTOPES