Industry-university Cooperation Foundation Hanyang University

Korea Atomic Energy Research Institute

Ki Hong Pak

Sang Min Lee

Jong Heon Kim

Tae Soon Kwon

Young Sik Cho

The present disclosure relates to an apparatus for detecting nuclear reactor coolant leaks that is capable of maintaining radiation detection reliability and the integrity of a radiation detector from high-dose background radiation inside a nuclear reactor when a coolant leaks from the primary coolant system of the nuclear reactor. The apparatus of the present disclosure includes a shield having an internal space into which sample air containing a coolant leaking from a primary coolant system pipe of a nuclear reactor is introduced. The shield is configured to close the exposed internal space or expand the internal space through detachable coupling. The apparatus of the present disclosure further includes a first sensor disposed in the internal space to obtain a radiation measurement signal from the sample air. The apparatus of the present disclosure further includes a discriminator for determining whether a coolant is leaking based on the radiation measurement signal.

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Seoul, South Korea

Ki Hong Pak