Experiences in the D&D of the EBWR reactor complex at Argonne National Laboratory

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EBWR went critical in Dec 1957 at 20 MW(t), was upgraded to 100 MW(t) operation. EBWR was shut down July 1967 and placed in dry lay-up. In 1986, the D&D work was planned in 4 phases: final planning and preparations for D&D, removal of reactor systems, removal of reactor vessel complex, and final decontamination and project closeout. Despite precautions, there was an uptake of {sup 241}Am by D&D workers following underwater plasma arc cutting within the pool; the cause was traced to an experimental {sup 241}Pu foil (200 {mu}g) that was lost in the mid-1960s in the reactor vessel. Several ... continued below

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3 p.

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Bhattacharyya, S.K.; Boing, L.E. & Fellhauer, C.R. February 1, 1995.

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Description

EBWR went critical in Dec 1957 at 20 MW(t), was upgraded to 100 MW(t) operation. EBWR was shut down July 1967 and placed in dry lay-up. In 1986, the D&D work was planned in 4 phases: final planning and preparations for D&D, removal of reactor systems, removal of reactor vessel complex, and final decontamination and project closeout. Despite precautions, there was an uptake of {sup 241}Am by D&D workers following underwater plasma arc cutting within the pool; the cause was traced to an experimental {sup 241}Pu foil (200 {mu}g) that was lost in the mid-1960s in the reactor vessel. Several major lessons were learned from this episode, among which is the fact that research facilities often involve unusual experiments which may not be recorded. Safety analysis and review procedure for D&D operations need to be carefully considered since they represent considerably different situations than reactor operations. EBWR is one of the very few cases of a prototypic reactor facility designed, operated, tested and now D&D`d by one organization.

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3 p.

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INIS; OSTI as DE95013713

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  • Annual meeting of the American Nuclear Society (ANS), Philadelphia, PA (United States), 25-29 Jun 1995

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  • Other: DE95013713
  • Report No.: ANL/TD/SUMM--85849
  • Report No.: CONF-950601--12
  • Office of Scientific & Technical Information Report Number: 76217
  • Archival Resource Key: ark:/67531/metadc724567

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  • February 1, 1995

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  • Sept. 29, 2015, 5:31 a.m.

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  • Dec. 14, 2015, 10:59 a.m.

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Bhattacharyya, S.K.; Boing, L.E. & Fellhauer, C.R. Experiences in the D&D of the EBWR reactor complex at Argonne National Laboratory, article, February 1, 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc724567/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.