Radioactivation characteristics for the tokamak fusion test reactor
Activation analysis has been conducted for several primary fusion blanket materials based on a model of a commercial tokamak fusion reactor design, STARFIRE. The blanket materials studied include two solid tritium breeders, viz., Li/sub 2/O and ..cap alpha..-LiAlO/sub 2/, and four candidate structural materials, viz., PCA stainless steel, V15Cr5Ti, Ti6Al4V, and Al-6063 alloys. The importance of breeder material activation is identified in terms of its impurity contents such as potassium, iron, nickel, molybdenum, and zirconium trace elements. The breeder activation is also discussed with regard to its potential for recycling and its impact on the lithium resource requirements. The structural material activation is analyzed based on two measures, volumetric radioactivity concentration and contact biological dose due to decay gamma emission. Using the radioactivity concentration measure, it is revealed that a substantial advantage exists from a viewpoint of radwaste management, which is inherent in fusion reactor designs based on potential low-activation alloys such as V15Cr5Ti, Ti6Al4V, and Al-6063. On the other hand, from the dose standpoint, the V15Cr5Ti alloy is found to be the only alloy for which one could realize a significant dose reduction (below 2.5 mrem/h) within about 100 yr after shutdown, possibly by some extrapolation on alloy purification techniques.
- Research Organization:
- Princeton University Plasma Physics Laboratory, Princeton, New Jersey 08544
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 6782734
- Journal Information:
- Nucl. Technol.; (United States), Vol. 4:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
STARFIRE TOKAMAK
MATERIALS TESTING
RADIOACTIVATION
TFTR REACTORS
THERMONUCLEAR REACTOR MATERIALS
ACTIVATION ANALYSIS
NEUTRON REACTIONS
ACTIVITY LEVELS
ALUMINATES
ALUMINIUM ALLOYS
BREEDING
BREEDING BLANKETS
CHROMIUM ALLOYS
COMPARATIVE EVALUATIONS
DECAY
DESIGN
GAMMA RADIATION
IMPURITIES
LITHIUM COMPOUNDS
LITHIUM OXIDES
PURIFICATION
RADIATION DOSES
RADIOACTIVITY
REACTOR SHUTDOWN
STAINLESS STEELS
TITANIUM ALLOYS
TRACE AMOUNTS
TRITIUM
VANADIUM ALLOYS
ALKALI METAL COMPOUNDS
ALLOYS
ALUMINIUM COMPOUNDS
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHALCOGENIDES
CHEMICAL ANALYSIS
CORROSION RESISTANT ALLOYS
DOSES
ELECTROMAGNETIC RADIATION
HADRON REACTIONS
HYDROGEN ISOTOPES
IONIZING RADIATIONS
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LIGHT NUCLEI
MATERIALS
NUCLEAR FUEL CONVERSION
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
RADIOISOTOPES
REACTOR COMPONENTS
SHUTDOWNS
STEELS
TESTING
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
YEARS LIVING RADIOISOTOPES
700206* - Fusion Power Plant Technology- Environmental Aspects