Transmutation of fission products and actinide waste at Hanford
- Los Alamos National Laboratory, NM (United States)
The authors studied the neutronics of an ATW system for the transmutation of the fission products ({sup 99}Tc in particular) and the type of actinide waste stored in several tanks at Hanford. The heart of the system is a highly-efficient neutron production target. It is surrounded by a blanket containing a moderator/reflector material, as well as the products to be transmuted. The fission products are injected into the blanket in the form of an aqueous solution in heavy water, whereas an aqueous actinides slurry is circulated in the outer part of the blanket. For the sake of definiteness, the authors focussed on {sup 99}Tc (the most difficult fission product to transmute), and {sup 239}Pu, {sup 237}Np, and {sup 241}Am. Because of the low thermal neutron absorption cross-section of {sup 99}Tc, considerable care and effort must be devoted to the design of a very efficient neutron source.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- OSTI ID:
- 106946
- Report Number(s):
- LA-UR--95-1792; CONF-9407103--; ON: DE95014018
- Country of Publication:
- United States
- Language:
- English
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