Identification of failed fuel element

Patent · 22 June 1976

OSTI ID:862578

Fryer, Richard M ^[1]; Matlock, Robert G ^[2]

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1. Idaho Falls, ID
2. Hinsdale, IL

A passive fission product gas trap is provided in the upper portion of each fuel subassembly in a nuclear reactor. The gas trap consists of an inverted funnel of less diameter than the subassembly having a valve at the apex thereof. An actuating rod extends upwardly from the valve through the subassembly to a point where it can be contacted by the fuel handling mechanism for the reactor. Interrogation of the subassembly for the presence of fission products is accomplished by lowering the fuel handling machine onto the subassembly to press down on the actuating rod and open the valve.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 3964964
• OSTI ID: 862578
• Country of Publication: United States
• Language: English

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