| Project/Area Number |
24540295
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Miyagi University of Education |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
MORIYAMA Shigetaka 東京大学, 宇宙線研究所, 准教授 (50313044)
OGAWA Izumi 福井大学, 大学院工学研究科, 准教授 (20294142)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | ニュートリノ / 2重ベータ崩壊 / ニュートリノ質量 / ジルコニウム / 液体シンチレータ / ２重ベータ崩壊 / ODZ錯体 / 素粒子実験 |
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| Outline of Final Research Achievements |
We have developed a liquid scintillator using luminous zirconium complexes for neutrinoless double beta decay experiment. At first, we synthesized zirconium ODZ cpmplex, and it has a peak wavelength for the mission around 430nm as we expected by some thesis, however, the quantum yield was only 13.2%, even though we could observe the signal from gamma-ray irradiation. In order to obtain better quantum yield, we have synhtesized 5-(4-6-dimethoxy-1,3,5-trianzin-2yl)-8-quinollinolate zirconium, which should have 30% of the quantum yield. This complex had a peak wavelength of 540nm as we expected, however, the quantum yield achieved to 12%. This value was almost same as normal 8-quinolinolate zirconium. Therefore, we concluded that the luminous zirconium complex with ligand such as ODZ and 8-quinolinolate can not be used for the fluorescent material in the liquid scintillator system.
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