Measurement of the fluorescence quantum yield of bis-MSB
The fluorescence quantum yield of bis-MSB, a widely used liquid scintillator wavelength shifter, was measured to study the photon absorption and re-emission processes in a liquid scintillator. The re-emission process affects the photoelectron yield and distribution, especially in a large liquid scin...
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| Published in | Chinese physics C Vol. 39; no. 12; pp. 44 - 50 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.12.2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-1137 0254-3052 |
| DOI | 10.1088/1674-1137/39/12/126001 |
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| Abstract | The fluorescence quantum yield of bis-MSB, a widely used liquid scintillator wavelength shifter, was measured to study the photon absorption and re-emission processes in a liquid scintillator. The re-emission process affects the photoelectron yield and distribution, especially in a large liquid scintillator detector, thus must be under- stood to optimize the liquid scintillator for good energy resolution and to precisely simulate the detector with Monte Carlo. In this study, solutions of different bis-MSB concentration were prepared for absorption and fluorescence emission measurements to cover a broad range of wavelengths. Harmane was used as a standard reference to obtain the absolution fluorescence quantum yield. For the first time we measured the fluorescence quantum yield of bis-MSB up to 430 nm as inputs required by Monte Carlo simulation, which is 0.926±0.053 at ;λex=350 nm. |
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| AbstractList | The fluorescence quantum yield of bis-MSB, a widely used liquid scintillator wavelength shifter, was measured to study the photon absorption and re-emission processes in a liquid scintillator. The re-emission process affects the photoelectron yield and distribution, especially in a large liquid scintillator detector, thus must be understood to optimize the liquid scintillator for good energy resolution and to precisely simulate the detector with Monte Carlo. In this study, solutions of different bis-MSB concentration were prepared for absorption and fluorescence emission measurements to cover a broad range of wavelengths. Harmane was used as a standard reference to obtain the absolution fluorescence quantum yield. For the first time we measured the fluorescence quantum yield of bis-MSB up to 430 nm as inputs required by Monte Carlo simulation, which is 0.926+ or -0.053 at [lambda] sub(ex)=350 nm. The fluorescence quantum yield of bis-MSB, a widely used liquid scintillator wavelength shifter, was measured to study the photon absorption and re-emission processes in a liquid scintillator. The re-emission process affects the photoelectron yield and distribution, especially in a large liquid scintillator detector, thus must be under- stood to optimize the liquid scintillator for good energy resolution and to precisely simulate the detector with Monte Carlo. In this study, solutions of different bis-MSB concentration were prepared for absorption and fluorescence emission measurements to cover a broad range of wavelengths. Harmane was used as a standard reference to obtain the absolution fluorescence quantum yield. For the first time we measured the fluorescence quantum yield of bis-MSB up to 430 nm as inputs required by Monte Carlo simulation, which is 0.926±0.053 at ;λex=350 nm. |
| Author | 丁雪峰 温良剑 周详 丁雅韵 叶星辰 周莉 刘梦超 蔡浩 曹俊 |
| AuthorAffiliation | Hubei Nuclear Solid Physics Key Laboratory, Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, and School of Physics and Technology, Wuhan University, Wuhan 430072, China Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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| Cites_doi | 10.1103/PhysRevLett.112.061801 10.1088/1674-1137/34/5/011 10.1016/j.nima.2012.05.030 10.1103/PhysRevD.88.013008 10.1016/j.nima.2014.05.119 10.1002/bio.671 10.1103/PhysRevLett.108.171803 10.1021/j100678a001 10.1063/1.1700579 10.1016/0022-2313(92)90077-M 10.1016/j.nima.2007.09.044 |
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| DocumentTitleAlternate | Measurement of the fluorescence quantum yield of bis-MSB |
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| Notes | fluorescence quantum yield, bis-MSB, JUNO, liquid scintillator 11-5641/O4 DING XueFeng, WEN Liangdian,ZHOU Xiang, DING Ya-Yun, YE Xing-Chen, ZHOU LI, LIU Meng- Chao,CAI Hao, CAO Jun（ 1 Hubei Nuclear Solid Physics Key Laboratory, Key Laboratory of Artificial Micro- and Nano structures of Ministry of Education, and School of Physics and Technology, Wuhan University, Wuhan 430072, China 2 Institute of High Energy Physics~ Chinese Academy of Sciences, Beijing 100049, China） The fluorescence quantum yield of bis-MSB, a widely used liquid scintillator wavelength shifter, was measured to study the photon absorption and re-emission processes in a liquid scintillator. The re-emission process affects the photoelectron yield and distribution, especially in a large liquid scintillator detector, thus must be under- stood to optimize the liquid scintillator for good energy resolution and to precisely simulate the detector with Monte Carlo. In this study, solutions of different bis-MSB concentration were prepared for absorption and fluorescence emission measurements to cover a broad range of wavelengths. Harmane was used as a standard reference to obtain the absolution fluorescence quantum yield. For the first time we measured the fluorescence quantum yield of bis-MSB up to 430 nm as inputs required by Monte Carlo simulation, which is 0.926±0.053 at ;λex=350 nm. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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| References | 11 Demas J N (12) 1970 13 Yang M S (7) 2014; 31 14 15 Xiao H L (10) 2010; 34 16 Long Gao (17) 2013; 37 Zhang F H (6) 2015; 39 1 2 3 4 5 8 Berlman I B (9) 1971 |
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| SubjectTerms | Computer simulation Detectors Fluorescence Liquids Monte Carlo methods Photon absorption Wavelengths 发射过程 波长变换器 测定 液体闪烁体 能量分辨率 荧光量子产率 闪烁体探测器 |
| Title | Measurement of the fluorescence quantum yield of bis-MSB |
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