Method of carrying out leak detection of nuclear fuel assemblies

Details Method of carrying out leak detection of nuclear fuel assemblies Method of carrying out leak detection of nuclear fuel assemblies

1992-11-16

1995-01-17

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Leak detection

376250, 376251, G21C 1700

Patent

active

053832264

ABSTRACT:
During leak detection of fuel assemblies (10) for a boiling water nuclear reactor, water is sucked from an area (12) located above an outlet (11) for water from the fuel assembly and around a gripper (8) for a loading machine (1) for fuel assemblies, which gripper is secured to the fuel assembly above the outlet, while the fuel assembly is lifted in the water (6) in which the fuel assembly is immersed or while the fuel assembly, after having been lifted in the water, is maintained in its lifted position or relowered in the water and while maintaining a flow of the water through the fuel assembly and around the gripper. The sucked-off water is subjected to an analysis with respect to the presence of fission products which, during operation of the reactor, have been formed of the fuel in the fuel assembly.

REFERENCES:
patent: 3762993 (1973-10-01), Jones
patent: 3801441 (1974-04-01), Jones
patent: 4016749 (1977-04-01), Wachter
patent: 4082607 (1978-04-01), Divona
patent: 4374801 (1983-02-01), Albin
patent: 4443402 (1984-04-01), Marini et al.
patent: 4650637 (1987-03-01), Chubb

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