GCFR plenum shield design: exit shield experiment

Technical Report · Fri May 01 04:00:00 EDT 1981

DOI:https://doi.org/10.2172/6513539· OSTI ID:6513539

Muckenthaler, F. J.; Hull, J. L.; Manning, J. J.

This report describes the integral flux, energy spectra, and dose rate measurements made for the Exit Shield Experiment at the Oak Ridge National Laboratory Tower Shielding Facility as part of the Gas Cooled Fast Breeder Reactor program. The source was the same mockup of fuel pins used in the previous Grid Plate Shield Experiment. Two mockups of the upper axial shield were studied: one with seven subassemblies prototypic of that portion of the Exit Shield without a control rod, and another that was representative of the shield region with a control rod. The experiment was performed to provide verification of: the shield design methods, the shield effectiveness of a prototypic mockup, the analytical ability to calculate streaming effects in the presence of a control rod, and the source term bias factors for the upper plenum.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6513539
• Report Number(s): ORNL/TM-7715
• Country of Publication: United States
• Language: English

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