| Project/Area Number |
24655050
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
SHINOHARA Atsushi 大阪大学, 理学(系)研究科(研究院), 教授 (60183050)
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| Co-Investigator(Kenkyū-buntansha) |
KASAMATSU Yoshitaka 大阪大学, 大学院理学研究科, 助教 (70435593)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | ラザホージウム / サマリウム共沈 / 超重元素 / 加速器 / Rf / 水酸化物 / 該当しない |
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| Research Abstract |
To establish a new chemical experiment for superheavy elements, we have developed a method to rapidly prepare a coprecipitated sample with Sm hydroxide which has good energy resolution in alpha spectrometry. For coprecipitation study of element 104, Rf, we studied coprecipitation behaviors of group 4 elements, Zr, Hf, and Th and also developed an apparatus for rapid preparation of the precipitated samples. Using the developed apparatus, we performed on-line coprecipitation experiments of 85Zr and 169Hf and determined the experimental conditions for Rf. Then, we actually produced 261Rf in the 248Cm(18O, 5n)261Rf reaction with an AVF cyclotron at RIKEN and investigated its coprecipitation behavior in aqueous NH3 and NaOH solutions.
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