Reactor control rod timing system

Details Reactor control rod timing system Reactor control rod timing system

1980-03-18

1982-02-09

Cangialosi, Sal

Induced nuclear reactions: processes, systems, and elements

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

376258, G21C 1700

Patent

active

043148816

ABSTRACT:
A fluid driven jet-edge whistle timing system for control rods of a nuclear reactor for producing real-time detection of the timing of each control rod in its scram operation. An important parameter in reactor safety, particularly for liquid metal fast breeder reactors (LMFBR), is the time deviation between the time the control rod is released and the time the rod actually reaches the down position. The whistle has a nearly pure tone signal with center frequency (above 100 kHz) far above the frequency band in which the energy of the background noise is concentrated. Each control rod can be fitted with a whistle with a different frequency so that there is no ambiguity in differentiating the signal from each control rod.

REFERENCES:
patent: 3237150 (1966-02-01), Beck et al.
patent: 3303457 (1967-02-01), Akesson
patent: 3803365 (1974-04-01), Cartier
patent: 3913407 (1975-10-01), Hanff et al.
patent: 4020693 (1977-05-01), Ahlgren et al.

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