| Project/Area Number |
04452022
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
核・宇宙線・素粒子
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| Research Institution | University of Tokyo |
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Principal Investigator |
KATAYAMA Ichiro Univ.Tokyo, INS, Professor, 原子核研究所, 教授 (30028237)
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| Co-Investigator(Kenkyū-buntansha) |
OHTANI Syunsuke Electro.Comm.Univ.Laser Center, Professor, レーザー極限技術センター, 教授 (60023735)
NOMURA Touru Univ.Tokyo, INS, Professor, 原子核研究所, 教授 (60087393)
KAWAKAMI Hirokane Univ.Tokyo, INS, Res.Assistant, 原子核研究所, 助手 (50013412)
WADA Michiharu Univ.Tokyo, INS, Res.Assistant, 原子核研究所, 助手 (50240560)
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥8,500,000 (Direct Cost: ¥8,500,000)
Fiscal Year 1993: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1992: ¥8,000,000 (Direct Cost: ¥8,000,000)
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| Keywords | RF trap / Penning trap / Laser Cooling / Unstable nuclei / Laser Microwave / ^<43>Ca^+ ion / Sextupole rf old Ion Guide (SPIG) / Double Resonance Bohr.Weisskopf Effect / REトラップ / イオントラップ / チタン・サファイアレーザー / アルゴンレーザー / カルシウムイオン / イオンガイド / 高周波イオンガイド / ガス入り型質量分離器 |
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| Research Abstract |
There has been a great progress, using an ion trap, to perform a very precise measurement of some fundamental quantities in quantum optics. The present study aims at applying this technique to investigate a property of unstable nuclei.
At INS, Univ.Tokyo, we have been working to build an on-line ion-trap system by which we plan to measure hyper-fine anomaly for unstable nuclei. In the present study, we have rather concentrated on building a laser system as well as on performing laser cooling of ^<43>Ca^+ ions as a test of the system. The laser system comprises an Ar laser, which became available by this fund, and a Ti-saphire laser which we got by other fund. Recently we could observe a laser-flourescence of ^<43>Ca^+ ions in an RF trap and some laser-cooling effect. After optimizing the system for laser-cooling, we'll soon start a laser-microwave double resonance of ^<43>Ca^+.
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