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Design and fabrication of the EBR-II environmental instrumented subassembly: Test XX07

Technical Report ·
DOI:https://doi.org/10.2172/7069154· OSTI ID:7069154

The EBR-II environmental instrumented subassembly (EISA), or Test XX07, was designed, fabricated, and irradiated to provide in-core measurements of irradiation conditions. This subassembly contained 57 elements with uranium metal-5 wt % fissium fuel and four nonfueled elements. It was instrumented with two permanent-magnet flowmeters, 13 coolant thermocouples at various axial and radial locations, 10 fuel-centerline thermocouples, and two self-powered detectors. The subassembly was irradiated in EBR-II for about 11,600 MWd (approximately 186 days), reaching a peak burnup of about 2.9 at. %. During its residence in the reactor, XX07 provided in-core measurements of flow, temperature, and flux levels under both steady-state and dynamic conditions. This report discusses the detailed design of XX07 and the various techniques used in its fabrication and assembly. The many component parts of XX07, as well as the final, completed subassembly, are described.

Research Organization:
Argonne National Lab., Ill. (USA)
Sponsoring Organization:
U.S. Department of Energy
DOE Contract Number:
W-31109-ENG-38; W-31109-ENG-38
OSTI ID:
7069154
Report Number(s):
ANL-76-78; 192851
Country of Publication:
United States
Language:
English