Fission product leak detection in a pressurized-water reactor

Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Leak detection

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376250, 376251, 376310, 376256, G21C 1700

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active

055464351

ABSTRACT:
The invention relates to an arrangement for carrying out leak detection of a fuel assembly for a pressurized-water nuclear reactor. A substantially vertical hollow mast means open in both ends houses the fuel assembly to be examined. The fuel assembly is drawn to the inside of the mast means from its lower side. The part of the mast means housing the fuel assembly is lifted to a position in which the fuel assembly is provided near but below the water surface of water inside the nuclear reactor. Water is sucked from a position inside the mast means above the fuel assembly. A gas separating means separates gases present in water sucked from the inside of the mast means. The separated gas is analyzed in a gas analyzing means regarding its amount of gaseous fission products.

REFERENCES:
patent: 3878040 (1975-04-01), Martucci
patent: 3929570 (1975-12-01), Jones et al.
patent: 4248666 (1981-02-01), Olsson
patent: 4537740 (1985-08-01), Colburn
patent: 4650637 (1987-03-01), Chubb
patent: 4816209 (1989-03-01), Schweiger
patent: 5414742 (1995-05-01), Hornak et al.

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