Coolant and solid breeder significance in fusion-fission blanket performances

Conference · Wed Jan 01 04:00:00 EST 1986 · Trans. Am. Nucl. Soc.; (United States)

OSTI ID:5503628

Perlado, J M

In preceding works, parametric evaluations of fusion-fission blanket performances have been considering relative fissile zone thickness, first-wall materials, and neutron spectra. This work puts emphasis on blanket responses when different solid breeder and coolant solutions are used. The two solid breeders studied were LiH and Li/sub 2/O. The Li/sub 2/O appears to be very attractive because of its ceramic characteristic. Helium is used as the coolant with both of them in a hybrid blanket. The results show that LiH is a better tritium breeder than Li/sub 2/O because of the higher neutron capture reaction rate in /sup 6/Li. Even though the atomic density of /sup 6/Li in the Li/sub 2/O zone (3.9 x 10/sup -3/ at b x cm) is higher than that in the LiH (3 x 10/sup -3/ at/b x cm), the existence of the hydrogen results in a large spectrum moderation and, consequently, an enhancement of the capture rate in /sup 6/Li. Three different coolant blanket designs have been analyzed.

• OSTI ID: 5503628
• Report Number(s): CONF-860610-
• Conference Information: Journal Name: Trans. Am. Nucl. Soc.; (United States) Journal Volume: 52
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700201* -- Fusion Power Plant Technology-- Blanket Engineering
700204 -- Fusion Power Plant Technology-- Cooling Systems
ALKALI METAL COMPOUNDS
ALKALI METALS
ALLOYS
BREEDING BLANKETS
CHALCOGENIDES
COOLING SYSTEMS
DESIGN
ELEMENTS
ENERGY SYSTEMS
FIRST WALL
FLUIDS
GASES
HELIUM
HYBRID REACTORS
HYDRIDES
HYDROGEN COMPOUNDS
LEAD ALLOYS
LIQUID METALS
LIQUIDS
LITHIUM
LITHIUM ALLOYS
LITHIUM COMPOUNDS
LITHIUM HYDRIDES
LITHIUM OXIDES
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
RARE GASES
REACTOR COMPONENTS
THERMONUCLEAR REACTOR WALLS