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Application of probabilistic consequence analysis to the assessment of potential radiological hazards of fusion reactors

Technical Report ·
OSTI ID:6890055
;
A methodology has been developed to provide system reliability criteria based on an assessment of the potential radiological hazards associated with a fusion reactor design and on hazard constraints which prevent fusion reactors from being more hazardous than light water reactors. The probabilistic consequence analyses, to determine the results of radioactivity releases, employed the consequence model developed to assess the risks associated with light water reactors for the Reactor Safety Study. The calculational model was modified to handle the isotopes induced in the structural materials of two conceptual Tokamak reactor designs, UWMAK-I and UWMAK-III. Volatile oxidation of the first wall during a lithium fire appears to be a primary means of disrupting induced activity, and the molybdenum alloy, TZM (UWMAK-III), tends to be more susceptible than 316 stainless steel (UWMAK-I) to mobilization by this mechanism.
Research Organization:
Massachusetts Inst. of Tech., Cambridge (USA). Dept. of Nuclear Engineering
OSTI ID:
6890055
Report Number(s):
MITNE-220
Country of Publication:
United States
Language:
English

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700206* -- Fusion Power Plant Technology-- Environmental Aspects
ALKALI METALS
ALLOY-TZM
ALLOYS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
ELEMENTS
FIRE HAZARDS
HAZARDS
HEALTH HAZARDS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDROGEN ISOTOPES
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LEAKS
LIGHT NUCLEI
LITHIUM
MATERIALS
METALS
MOLYBDENUM ALLOYS
MOLYBDENUM BASE ALLOYS
NICKEL ALLOYS
NUCLEI
ODD-EVEN NUCLEI
RADIATION HAZARDS
RADIOISOTOPES
RELIABILITY
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
THERMONUCLEAR REACTORS
TITANIUM ALLOYS
TOKAMAK TYPE REACTORS
TRITIUM
UWMAK REACTORS
YEARS LIVING RADIOISOTOPES
ZIRCONIUM ALLOYS