Transport and deposition of activation products in a helium cooled fusion power plant
Description
The transport and deposition of neutron activation products in a helium cooled tokamak fusion power plant are investigated. Stainless steel is used as coolant channel material for a helium/steam system. The important gamma emitting nuclides 56Mn, 54Mn, 57Co, 58Co, 60Co, 51Cr, and 99Mo are considered. The dominant release mechanism identified is direct daughter recoil emission from (n,x) type reactions. Corrosion and evaporation are discussed. The radionuclide inventory released by these mechanisms is predicted to exceed 1 x 104 Ci for a reference reactor design after only several days of operation, and approach 3.5 x 104 Ci in equilibrium. A mass transport model is then used to predict the deposition pattern of this inventory in the reactor cooling system
Availability note (English)
MF available from INIS under the Report Number; Available from NTIS., PC A04/MF A01.Files
12576533.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 59 p.
- Report number
- PNL--3487
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 12576533
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CHROMIUM 51; COBALT 57; COBALT 58; COBALT 60; COOLANTS; COOLING SYSTEMS; CORROSION; HELIUM; INVENTORIES; MANGANESE 54; MANGANESE 56; MOLYBDENUM 99; NEUTRON REACTIONS; RADIATION HAZARDS; RADIOACTIVATION; STAINLESS STEELS; THERMONUCLEAR POWER PLANTS; THERMONUCLEAR REACTORS
- Descriptors DEC
- ALLOYS; BARYON REACTIONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CARBON ADDITIONS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM ISOTOPES; COBALT ISOTOPES; CORROSION RESISTANT ALLOYS; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; EVEN-ODD NUCLEI; HADRON REACTIONS; HAZARDS; HEALTH HAZARDS; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; IRON ALLOYS; IRON BASE ALLOYS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MANGANESE ISOTOPES; MINUTES LIVING RADIOISOTOPES; MOLYBDENUM ISOTOPES; NONMETALS; NUCLEAR FACILITIES; NUCLEAR POWER PLANTS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; POWER PLANTS; RADIOISOTOPES; RARE GASES; STEELS; THERMAL POWER PLANTS; TRANSITION ELEMENT ALLOYS; YEARS LIVING RADIOISOTOPES