Monitoring system for monitoring state of nuclear reactor core

Details Monitoring system for monitoring state of nuclear reactor core Monitoring system for monitoring state of nuclear reactor core

1981-03-19

1985-01-22

Cangialosi, Sal

Induced nuclear reactions: processes, systems, and elements

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

Leak detection

376253, G21C 1700

Patent

active

044951426

ABSTRACT:
The nuclear reactor container of a boiling water reactor has a dry well and a pressure suppression chamber. The level of the radioactivity in the cooling water filling the pressure suppression chamber is measured by a liquid radiation monitor. An iodine monitor measures a level of the radioactivity of the iodine in the space above the surface of cooling water in the pressure suppression chamber, while a noble gas monitor measures a level of the radioactivity of noble gas in the same space. Outputs from the liquid radiation monitor, the iodine monitor and the noble gas monitor are delivered to an accident judging device which makes judgement as to occurrence of perforation of fuel rods and melt down of fuel rods in the event of a Loss Of Coolant Accident (LOCA), the result of which is displayed at a display device.

REFERENCES:
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patent: 3258403 (1966-06-01), Malay
patent: 3288998 (1966-11-01), Press, Jr.
patent: 3712850 (1973-01-01), Campbell et al.
patent: 3788813 (1974-01-01), Busch
patent: 3982129 (1976-09-01), Lattin et al.
patent: 4032395 (1977-06-01), Burnette
patent: 4204908 (1980-03-01), Michaelis et al.

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