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Abstract

Neutron and gamma ray measurements were carried out with the portable ION-1 FORK on 22 LWR spent fuel assemblies. The burn-up of the measured assemblies varied between 1800 MWd/tU and 34000 MWd/tU. In addition, a fresh MOX and an irradiated MOX assembly were measured. Reproducibility and axial profile measurements were performed. The consistency between the operators burn-up values using the neutron measurements was within about 5%. The total measurement time per assembly, determined primarily by the fuel handling time, was about 12 minutes. Consistency checks on declared cooling time and on declared total Pu content can be carried out. Experience indicates that the assembly, handling, dissassembly and decontamination of the FORK detector can be done in a reasonable time scale.

Additional information

Authors: SCHENKEL R, CEC LUXEMBOURG;LOS ALAMOS NATIONAL LABORATORY, NEW MEXICO (USA);BOSLER G, CEC LUXEMBOURG;LOS ALAMOS NATIONAL LABORATORY, NEW MEXICO (USA);KLOSTERBUER S CEC LUXEMBOURG, CEC LUXEMBOURG;LOS ALAMOS NATIONAL LABORATORY, NEW MEXICO (USA);LOS ALAMOS NATIONAL LABORATORY, NEW MEXICO (USA), CEC LUXEMBOURG;LOS ALAMOS NATIONAL LABORATORY, NEW MEXICO (USA)
Bibliographic Reference: 7TH ESARDA ANNUAL SYMPOSIUM ON SAFEGUARDS AND NUCLEAR MATERIAL MANAGEMENT, LIEGE (BELGIUM), MAY 21-23, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32234 ORA
Availability: Can be ordered online
Record Number: 1989123093800 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en