Process and apparatus for acoustic and ultrasonic detection of d

Details Process and apparatus for acoustic and ultrasonic detection of d Process and apparatus for acoustic and ultrasonic detection of d

1980-09-18

1983-10-18

Cangialosi, Sal

Induced nuclear reactions: processes, systems, and elements

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

Leak detection

G21C 1700

Patent

active

044104847

ABSTRACT:
Gases contained in the sheaths of the fuel elements are made to expand in order to cause the escape of gas bubbles in the protective liquid into which the fuel assemblies are immersed. The progress of the gas bubbles in the protective liquid is arrested by means of a screen (1) located above the assembly and an acoustic phenomenon associated with the impact of the gas bubbles on the screen or with the accumulation of gas below the surface of the screen is recorded. The appearance of this acoustic phenomenon permits the detection of defective assemblies.
The invention applies in particular to pressurized water nuclear reactors.

REFERENCES:
patent: 3936348 (1976-02-01), Wachter et al.
patent: 3945245 (1976-03-01), Stehle et al.
patent: 4016749 (1977-04-01), Wachter
patent: 4039376 (1977-08-01), Watchter
patent: 4201092 (1980-05-01), Dau

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