Anomaly diagnosis system for a nuclear reactor core

Details Anomaly diagnosis system for a nuclear reactor core Anomaly diagnosis system for a nuclear reactor core

1990-06-05

1991-06-04

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

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

Temperature or pressure measurement

G21C 1700

Patent

active

050212109

ABSTRACT:
An anomaly diagnosis system for a nuclear reactor, comprising ultrasonic wave reflecting members and an ultrasonic wave emitter-receiver. The ultrasonic wave reflecting members are provided respectively on the fuel assemblies, and include a shape memory alloy which permits changing the shape thereof. The ultrasonic wave emitter-receiver is located exterior of the reactor vessel, and includes means for providing an anomaly detection signal to the plant protection system when the ultrasonic wave reflected by any one of the ultrasonic wave reflecting members is not received by the ultrasonic wave emitter-receiver.

REFERENCES:
patent: 4290849 (1981-09-01), Uesugi et al.
patent: 4319958 (1982-03-01), Fica et al.
patent: 4655992 (1987-04-01), McKnight et al.
patent: 4876059 (1989-10-01), Conroy

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