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Development of Liquid Scintillator containing a Zirconium Complex for Neutrinoless Double Beta Decay Experiment
https://mue.repo.nii.ac.jp/records/263
https://mue.repo.nii.ac.jp/records/2633e7afdf6-5816-40aa-85ac-b530a133655b
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Development of Liquid Scintillator containing a Zirconium Complex for Neutrinoless Double Beta Decay Experiment (1.8 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-02-10 | |||||
| タイトル | ||||||
| タイトル | Development of Liquid Scintillator containing a Zirconium Complex for Neutrinoless Double Beta Decay Experiment | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | ニュートリノ質量 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | ニュートリノを放出しない2重ベータ崩壊 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | ジルコニウム | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 液体シンチレータ | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 金属錯体 | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Neutrino Mass | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Neutrinoless Double Beta Decay | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Zirconium | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Liquid Scintillator | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Metal Complex | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 著者 |
Fukuda, Yoshiyuki
× Fukuda, Yoshiyuki× Narengerile× OBATA, Akira× MORIYAMA, Shigetaka× OGAWA, Izumi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | An organic liquid scintillator containing a zirconium complex has been developed for a new neutrinoless double beta decay experiment. In order to produce a detector that has good energy resolution (4% at 2.5 MeV) and low background (0.1 counts/(tonne・year) and that can monitor tonnes of target isotope, we chose a zirconium β-diketone complex having high solubility (over 10 wt.%) in anisole. However, the absorption peak of the diketone ligand overlaps with the luminescence of anisole. Therefore, the light yield of the liquid scintillator decreases in proportion to the concentration of the complex. To avoid this problem, we synthesized a β-keto ester complex introducing -OC3H7 or -OC2H5 substituent groups in the β-diketone ligand, and a diethyl malonate complex. Those shifted the absorption peak to around 245nm and 210nm, respectively, which are shorter than the emission peak of anisole (275nm). However, the shift of the absorption peak depends on the the scintillation solvent. Therefore we have to choose an adequate solvent for the liquid scintillator. The best performance will be obtained by pure anisole scintillator containing a tetrakis diethyl malonate zirconium. We also synthesized a Zr-ODZ complex, which has a high quantum yield (30%) and good emission wavelength (425nm) with a solubility 5 wt.% in benzonitrile. However, the absorption peak of the Zr-ODZ complex was around 240 nm. Therefore, it is better to use the scintillation solvent which has shorter luminescence wavelength than that of benzonitrile. | |||||
| 書誌情報 |
宮城教育大学紀要 en : Bulletin of Miyagi University of Education 巻 48, p. 125-132, 発行日 2014-01-27 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 13461621 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA1125110X | |||||
