Radiolysis aspects of the aqueous self-cooled blanket concept and the problem of tritium extraction
In the Aqueous Self-Cooled Blanket (ASCB) concept, an aqueous /sup 6/Li solution in a metallic structure is used as a fusion reactor shielding-breeding blanket. Radiolysis effects could be very important for the design and the use of an ASCB. Although many aspects of the radiation chemistry of water and dilute aqueous solutions are now reasonably well understood, it is not possible to predict the radiochemical behaviour of the concentrated candidate ASCB solutions quantitatively. However, by means of a worst case calculation for a possible ASCB for the Next European Torus (NET) it is shown that even with an important rate of water decomposition the ASCB concept is still workable. Gas bubbles and explosive mixtures can be avoided by increasing the pressure in the neutron irradiated zone and by extracting and/or recombining the radiolytically produced hydrogen and oxygen. This could require an additional inert gas loop, which could also be used as part of the tritium extraction installation.
- Research Organization:
- Studiecentrum voor Kernenergie, SCK/CEN Boeretang 200, B-2400 Mol (BE); Rensselaer Polytechnic Inst., Troy, NY (USA)
- OSTI ID:
- 5866136
- Report Number(s):
- CONF-880505-
- Journal Information:
- Fusion Technol.; (United States), Vol. 14:2; Conference: 3. topical meeting on tritium technology in fission, fusion and isotopic applications, Toronto, Canada, 1-6 May 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
BREEDING BLANKETS
SHIELDING
LITHIUM 6
RADIOLYSIS
NET TOKAMAK
AQUEOUS SOLUTIONS
CALCULATION METHODS
CHEMICAL REACTION YIELD
COOLING
HYDROGEN
NEUTRONS
OXYGEN
RADIOCHEMISTRY
TRITIUM EXTRACTION PLANT
WATER
ALKALI METAL ISOTOPES
BARYONS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
DISPERSIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
HYDROGEN COMPOUNDS
INDUSTRIAL PLANTS
ISOTOPE SEPARATION PLANTS
ISOTOPES
LIGHT NUCLEI
LITHIUM ISOTOPES
MIXTURES
NONMETALS
NUCLEAR FACILITIES
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
REACTOR COMPONENTS
SOLUTIONS
STABLE ISOTOPES
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
YIELDS
700201* - Fusion Power Plant Technology- Blanket Engineering
700205 - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems
400700 - Radiochemistry & Nuclear Chemistry