By United States. Dept. of Energy. Yucca Mountain Project Office.; United States. Dept. of Energy.; United States. Dept. of Energy. Office of Scientific and Technical Information

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B. Robinson reactors were analyzed by the MCC at PINL. The MCC is responsible for providing spent fuel Approved Testing Materials (ATMs) for radiochemical measurements conducted by PNL for the Department of Energy's Office of Civilian Radioactive Waste Management. The activities at PNL were performed according to QA procedures developed using the QA program, which included ASME/ANSI NQA- 1 requirements. I I I I I Although the programs under which measurements on the samples from Obrigheirn, Trino Vercelles, Yankee Rowe, Turkey Point, and Mihama have not been performed under DOE C R W QA program, the production and handling of radioactive materials, especially fissile materials, is heavily controlled by both national and international regulatory bodies.

3-14 Ref. 3-14 Ref. 3-14 Ref. 0009 March 30,1997 (257pm) I I I I I I I I I I I I I I I I Table 3-1. Critical Benchmark Experiments for Burnup Credit Method Validation with CSAS/27BURNUPLIB Calculated Results (Continued) I Experiment Case Enrichment U-235 Description Original Reference' (Wt %) I I I I I I I I I I I PUP I PUP I I I I I I UOJFQO, triangular I I I I I Lattice NaterFuel Volume ALA' kat std. dev. 386-in lattice spacing Ref. 3-14 Ref. 3-14 Ref. 3- 14 Ref. 3- 14 Ref. 3-14 Ref. 70-in lattice spacing Ref.

For this application only one side of the interval is of interest. Therefore, the uncertainty is established in a way that there is a 95% confidence that the next observation being- above (absorbers) or below (fissile isotopes) the corrected isotopic concentration. The correction factor for those isotopes which do not exhibit any trends 2-19 I I I I I I I I I I i I I I ix2-16 Eq. Rl /Draft I I I I I I I I March 31, 1997 (4:29pm) I where, Eq. 2-16 I I I I is the Student-t value for 95 % confident with n-1 data points.

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Actinide-Only Burnup Credit for PWR Spent Nuclear Fuel Packages by United States. Dept. of Energy. Yucca Mountain Project Office.; United States. Dept. of Energy.; United States. Dept. of Energy. Office of Scientific and Technical Information


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