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The paper proposes transmutation of minor actinide and fission products (FP) using spallation neutrons from a subcritical assembly, as an alternative to isolating high-level radioactive waste in a geologically stable storage formation. Use of a small power accelerator with a slightly subcritical fast neutron assembly might enable the employment of these minor actinides to improve fuel economy as well as to mitigate the problem of reactor safety. There are substantial energy requirements for transmutation of FP using the n, gamma reaction and to reduce these requirements it is possible to use the subcritical assembly in which neutrons created by the spallation reaction are multiplied.

Additional information

Authors: TAKAHASHI H, Brookhaven National Laboratory, New York (US);RIEF H, JRC Ispra (IT)
Bibliographic Reference: Paper presented: 1992 ANS/ENS International Meeting, Chicago (US), November 15-20, 1992
Availability: Available from (1) as Paper EN 37353 ORA
Record Number: 199310363 / Last updated on: 1994-11-29
Original language: en
Available languages: en