7-Diethylamino-4-methylcoumarin 기반 섬광체 제작 및방사능 검출특성평가
Fabrication of 7-Diethylamino-4-methylcoumarin-based Scintillator for Gamma Radiation Detection
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초록
Commercially used organic scintillation materials (1,4 di[2-(5phenyloxazolyl)] benzene)have low solubility in solvents and a wide emission energy range, which causes a decrease in detectionefficiency. In this study, an organic liquid scintillator with improved detection efficiency was developedusing 7-Diethylamino-4-methylcoumarin material to compensate for the disadvantages of existing organicscintillation detectors. And to evaluate the applicability of radiation measurement, the performanceof a commercial plastic detector was compared. As a result of analyzing the 60Co detection characteristicsby applying 7-Diethylamino-4-methylcoumarin as an alternative to 1,4 di[2-(5phenyloxazolyl)] benzene,the detection efficiency was improved around 2% compared with commercial scintillator when the7-Diethylamino-4-methylcoumarin content was 0.04 wt%. Based on the results of this study, thepossibility of improving detection efficiency through scintillator material modification was confirmed. Inaddition, since it is possible to discriminate nuclide through the spectrum correction algorithm, it will bepossible to inspect and classify various decommissioning wastes generated during the decommissioningprocess.
Abstract
Commercially used organic scintillation materials (1,4 di[2-(5phenyloxazolyl)] benzene)have low solubility in solvents and a wide emission energy range, which causes a decrease in detectionefficiency. In this study, an organic liquid scintillator with improved detection efficiency was developedusing 7-Diethylamino-4-methylcoumarin material to compensate for the disadvantages of existing organicscintillation detectors. And to evaluate the applicability of radiation measurement, the performanceof a commercial plastic detector was compared. As a result of analyzing the 60Co detection characteristicsby applying 7-Diethylamino-4-methylcoumarin as an alternative to 1,4 di[2-(5phenyloxazolyl)] benzene,the detection efficiency was improved around 2% compared with commercial scintillator when the7-Diethylamino-4-methylcoumarin content was 0.04 wt%. Based on the results of this study, thepossibility of improving detection efficiency through scintillator material modification was confirmed. Inaddition, since it is possible to discriminate nuclide through the spectrum correction algorithm, it will bepossible to inspect and classify various decommissioning wastes generated during the decommissioningprocess.
참고문헌 (11)
- Lee BS, "Management of decommissioning waste from nuclear power plant", Autumn Workshop of korean radioactive waste society (2015)
- El-Daly SA, "Photophysical parameters, excitation energy transfer, and photoreactivity of 1, 4-Bis(5-phenyl-2-oxazolyl)benzene(POPOP)laser dye", Int. J. Photoenergy, 2012(458126), pp.1~10 (2012)[DOI]
- Skorotetcky M, "Synthesis and photostability of 1, 4-bis(5-phenyloxazol-2-yl)benzene(POPOP)structural isomers and their trimethylsilyl derivatives", Dyes Pigm, 141, pp.128~136 (2017)[DOI]
- May B, "A Study of a highly efficiency resonance energy transfer between 7-N, N-diethylamino4-methylcoumarin and 9-butyl-4-butylamino-1, 8-naphthalimide", Dyes Pigm, 42(1), pp.79~84 (1999)[DOI]
- Yip RW, "Photophysics of 7-diethylamino4-methylcoumarin : picosecond time-resolved absorption and amplified emission study", J. Photochem. Photobiol. A : Chem, 54(2), pp.263~270 (1990)[DOI]
- Tolba MS, "An overview on synthesis and reactions of coumarin based compound", Curr. Chem. Lett, 11(1), pp.29~42 (2022)[DOI]
- Ramanlingam A, "Photophysics of TICT states of 7-diethylamino-4-methylcoumarin dye by energy transfer techniques", Spectrochim. Acta-A : Mol. Biomol. Spectrosc, 56(6), pp.1205~1210 (2000)[DOI]
- Sastikumar D, "Influence of solvents on amplified spontaneous emission characteristics of 7-diethylamino4-methylcoumarin", Proc. Indian. Acad. Sci, 109, pp.325~331 (1997)[DOI]
- Shin WG, "A Monte Carlo study of an energy weighted algorithm for radionuclide analysis with a plastic scintillation detector", Appl. Radiat. Isot, 101, pp.53~59 (2015)[DOI]
- Lee HC, "Validation of energy-weighted algorithm for radiation portal monitor using plastic scintillator", Appl. Radiat. Isot, 107, pp.160~164 (2016)[DOI]
- Margarida Mizue Hamada, "Radiation damage studies on the optical and mechanical properties of plastic scintillators", Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 422(1-3), pp.148~154 (1999), Elsevier BV[DOI]