Korea Atomic Energy Research Institute

Korea University Research and Business Foundation

Korea Hydro Nuclear Power Co., Ltd.

Seop Hur

Chanho Kim

Jung-Yeol Yeom

Inyong Kwon

Dong-Hoon Kim

Jung-woon Lee

Dong-Young Lee

Inkoo Hwang

Kee-Choon Kwon

Jong-Gyun Choi

Jung Taek Kim

Gee Yong Park

Jae-Chang Park

The present invention relates to an apparatus for determining the location of a radiation source. The apparatus for determining the location of a radiation source according to the present invention comprises: a collimator part for selectively passing radiation therethrough according to the direction in which the radiation is incident; a scintillator part for converting the radiation incident from the collimator part into a light ray; a first optical sensor for converting the light ray incident from one end of the scintillator part into a first optical signal; a second optical sensor for converting the light ray incident from the other end of the scintillator part into a second optical signal; and a location information acquisition part for acquiring information on the location where the light ray is generated in the scintillator part, by using the second optical signal and the second optical signal.

Apparatus for detecting position of radiation source

Provided is an automated periodic surveillance testing method and apparatus in a digital reactor protection system, which unites a passive testing means such as a self-diagnosis or an on-line state comparison with an active testing means such as an automatic logic test and the like in the digital reactor protection system. Accordingly, a device self-diagnosis, an on-line state diagnosis, and an automatic logic test are used as the automated periodic surveillance testing method in the digital reactor protection system. Thus, the time consumed in a periodic surveillance test can be minimized, thereby saving reactor operating costs, and excessive manpower can be avoided, thereby decreasing potential human errors. Also, a channel detour time at which one of multiple channels is detoured can be minimized based on the automated periodic surveillance test in the digital reactor protection system, thereby enhancing stability.

Automated periodic surveillance testing method and apparatus in digital reactor protection system

Growing community of inventors

Daejeon, South Korea

Seop Hur