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U.S. Department of Energy
Office of Scientific and Technical Information

Reference critical experiments. Progress report, July 1, 1976--September 30, 1976

Technical Report ·
OSTI ID:7135272
Thirty-two critical experiments were performed through September 30, 1976. Twenty-nine of these involved single cylinders located within a concrete enclosure having 10-in.-thick (25.4-cm) walls, top, and floor. The three remaining experiments were a 4 x 4 square pitch array (16 cylinders) of 8.3-in.-diam (21.2-cm) cylinders in this same concrete enclosure. A Measurement Control Program for our aqueous UO/sub 2/ (NO/sub 3/)/sub 2/ solution is nearly complete to measure the laboratory's bias in concentration measurements. This bias measures the difference between an analytical chemistry determination of the concentration (done in the Nuclear Safety Laboratory) and carefully prepared standards samples in the appropriate concentration ranges. These samples were prepared by the Rocky Flats Chemistry Standards Laboratory. During this period, the concrete reflector enclosure was assembled, including special instrumentation needed to measure solution heights within the experimental cylindrical vessels.
Research Organization:
Atomics International Div., Golden, Colo. (USA)
DOE Contract Number:
EY-76-C-04-3533
OSTI ID:
7135272
Report Number(s):
RFP-NUREG-2582
Country of Publication:
United States
Language:
English