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KMID : 0357520100330010051
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Journal of Radiological Science and Technology
2010 Volume.33 No. 1 p.51 ~ p.59
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Development of a Spectrum Analysis Software for Multipurpose Gamma-ray Detectors
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Lee Jong-Myung
Kim Yong-Kwon
Park Kil-Soon
Kim Jung-Min
Lee Ki-Sung
Joung Jin-Hoon
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Abstract
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We developed an analysis software that automatically detects incoming isotopes for multi-purpose gamma-ray detectors. The software is divided into three major parts; Network Interface Module (NIM), Spectrum Analysis Module (SAM), and Graphic User Interface Module (GUIM). The main part is SAM that extracts peak information of energy spectrum from the collected data through network and identifies the isotopes by comparing the peaks with pre-calibrated libraries. The proposed peak detection algorithm was utilized to construct libraries of standard isotopes with two peaks and to identify the unknown isotope with the constructed libraries. We tested the software by using GammaPro1410 detector developed by NuCare Medical Systems. The results showed that NIM performed 200K counts per seconds and the most isotopes tested were correctly recognized within 1% error range when only a single unknown isotope was used for detection test. The software is expected to be used for radiation monitoring in various applications such as hospitals, power plants, and research facilities etc.
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KEYWORD
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gamma-ray, detector, isotope, auto-detection, monitoring device
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