Method and apparatus for identifying failed nuclear fuel rods du

Details Method and apparatus for identifying failed nuclear fuel rods du Method and apparatus for identifying failed nuclear fuel rods du

1995-02-14

1996-07-23

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

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

Leak detection

376264, 376271, G21C 1910, G21C 1706

Patent

active

055397891

ABSTRACT:
An accelerometer is mounted onto the releasable fuel gripper structure of a refueling machine to form a mechanical interconnection between an accelerometer and a nuclear fuel assembly during removal from a core of a nuclear reactor. An electrical signal is received and processed through an analyzer and recorded corresponding to mechanical vibrations occurring due to the passage of a fluid medium through a porous sidewall defect in a fuel rod of the fuel assembly which is induced by a hydrostatic pressure change on the fuel assembly during upward movement from the reactor core.

REFERENCES:
patent: 4039376 (1977-08-01), Wachter
patent: 4482520 (1984-11-01), Randazza
patent: 4539174 (1985-09-01), Patenaude

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