USAEC - AECL Cooperative Program (Monthly Progress Report, September 1967)

Technical Report · Tue Oct 10 04:00:00 EDT 1967

DOI:https://doi.org/10.2172/1909435· OSTI ID:1909435

Hilborn, H. S. ^[1]; Crandall, J. L. ^[1]; Byars, R. F. ^[1]

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1. Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.

One of the Savannah River Laboratory (SRL) projects under the Cooperative Program for this fiscal year is the extension of the multigroup one-dimensional HAMMER code for reactor cell calculations to two dimensions by incorporating a collision probability treatment for each energy group. As mentioned in DPST-67-83-8, the possibility of accomplishing this end by combining the one-group collision probability CLUCOP code with the HAMMER code was tested for reactor fuel clusters of the CANDU type by using preliminary HAMMER calculations to define energy averaged one-group cross sections and then using these cross sections in CLUCOP calculations. The results were compared with earlier SRL experimental measurements on rod clusters and with thermal activation ratios predicted by the cylindriclzed HAMMER code alone. Some of the results of these comparisons are given in this report. An irradiation test of in-core flux monitors was made in one of the Savannah River Plant reactors to determine the life characteristics of a selection of flux detectors and of the mineral insulation used in their construction. Self-powered flux detectors are relatively new; therefore, confidence in their use hinges to a great extent on proven performance at large integrated exposures. The chief points of interest are 1) integrity of the conductors and sheath during life, 2) life of insulation, and 3) sensitivity. Irradiation testing of the AECL neutron detector rod described in DPST-66-83-5 has been completed. A reports1) has been written on the irradiation test.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States); Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.
• Sponsoring Organization: USDOE Office of Environmental Management (EM); US Atomic Energy Commission (AEC)
• DOE Contract Number: 89303321CEM000080
• OSTI ID: 1909435
• Report Number(s): DPST-67-83-9
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
42 ENGINEERING
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
97 MATHEMATICS AND COMPUTING