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http://dx.doi.org/10.6109/jkiice.2020.24.11.1519

Direction detection technique of radioactive contaminants based on rotating collimator  

Hwang, Young-Gwan (Korea Atomic Energy Research Institute)
Song, Keun-Young (Korea Atomic Energy Research Institute)
Lee, Nam-Ho (Korea Atomic Energy Research Institute)
Abstract
AGeneral radiation measuring devices have been developed in the form of spatial dose rate detection devices that measure dose rates to radioactive contaminant and 2D or 3D imaging devices for radioactive contamination information. Each of these radiation detection techniques has advantages. The advantages of both detection devices are necessary to minimize personal injury and rapid decontamination in the area of a radioactive accident. In this paper, we proposed a technique that can measure the dose rate and direction information about the radioactive pollutant source in real time using a detection sensor, a rotating body, and a directional shield for radioactive pollutant detection. The rotational-based detection device is configured to check the dose rate and direction using the location information of the rotator and measurement value. We proposed a measurement technique for vertical and horizontal directions through multiple holes. It was confirmed that the measurement error for direction information was less than 1% when detected in the horizontal direction.
Keywords
Radiation detector; Direction detector; Dosimeter; Rotating collimator; Scintillation detector;
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