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http://dx.doi.org/10.7471/ikeee.2018.22.3.638

Development of 3D Radiation Position Identification System of Multiple Radiation Sources using Plastic Scintillator and NaI(TI) Detector  

Kwak, Dong-Hoon (Dept. Electronic Engineering, Hanbat National University)
Ko, Tae-Young (Dept. Electronic Engineering, Hanbat National University)
Lee, Seung-Ho (Dept. Electronics&Control Engineering, Hanbat National University)
Publication Information
Journal of IKEEE / v.22, no.3, 2018 , pp. 638-644 More about this Journal
Abstract
In this paper, we develop a measurement system that uses 3D Scintillator and NaI(TI) Detector to 3-dimensionally identify the location of multiple radiation sources in moving vehicle loads. The radiation measurement system consists of radiation measurement (plastic scintillator), 2-channel Pulse Counter Board, nuclide analysis (NaI(TI) detector) and 1 channel MCA Board. The source locator algorithm calculates the coordinate value of the ratio of the CPS value($1/r^2$) of the source according to the angle(${\theta}$) in inverse proportion to the square of the distance(X, Y) through the SVM classification. The coordinate values are input every predetermined period of the spectrum, and after analyzing the spectrum per unit cycle, the position of the nuclide at the time is calculated by determining whether or not the nuclide is present in the remaining part except for the background area. As a result of the position discrimination test, the error within the international standard of ${\pm}1m$ was shown. Thus, the utility of the proposed system has been demonstrated.
Keywords
Plastic Scintillator; NaI(TI) Detector; SVM Classification; Radiation; Location Determination;
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