Process and device for detecting defective cladding sheaths in a nuclear fuel assembly
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United States of America Patent
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Sep 29, 1987
Grant Date -
N/A
app pub date -
Aug 8, 1985
filing date -
Aug 8, 1984
priority date (Note) -
Expired
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Abstract
A sipping test for detecting defective sheaths in a nuclear fuel assembly is carried out by increasing the pressure of the gases within the sheaths by increasing the temperature. The fission products are released in case of sheath failure. A mixture of water and inert gas is introduced into a hood containing the fuel assembly. Gas and water are separated at the upper portion of the hood and are circulated in distinct loops for continuous detection of the water-soluble fission products and the gas-driven fission products.
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