1999 Fiscal Year Final Research Report Summary
| Project/Area Number |
08240103
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Research Institution | University of Tsukuba |
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Principal Investigator |
LEE Sang-moo Univ. of Tsukuba, Inst. of Phys., Professor, 物理学系, 教授 (10175028)
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| Co-Investigator(Kenkyū-buntansha) |
YABANA Kazuhiro Univ. of Tsukuba, Inst. of Phys., Associate Professor, 物理学系, 助教授 (70192789)
ARAI Ichiro Univ. of Tsukuba, Inst. of Phys., Assistant Professor, 物理学系, 講師 (50134440)
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| Project Period (FY) |
1996 – 1998
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| Keywords | Quantum Tunneling Effect of Cluster Fission / Metal Cluster Ion Source / High Resolution Mass Analyzer / Reflectron T-O-F / Multi Charged Ion / ECR Ion Source / Beam Crossing / Multiplicity of Cluster Fissoin Fragments |
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| Research Abstract |
We have finally completed to construct a new experimental apparatus system for the cluster fission research which was started since 1997. The following performances are expected.
Metal Cluster Ion Source : All kinds of Metal Clusters except Hg and Ga (n=1〜10000).
High Resolution Mass Analyzer : Electro-Magnetic Field Type, n/Δn=10ィイD14ィエD1.
Reflectron TOF Mass Analyzer : Resolution of n/Δn 〜 1000.
Internal Energy Control of Cluster : Range of Temperature is from the liquid He temperature to the liquid Nitrogen temperature.
ECR Ion Source with the liquid He free Super Conducting Magnet ィイD116ィエD1OィイD1+5ィエD1 〜 several mA, XeィイD1+20ィエD1 〜 100μA.
Using the method of beam crossing between cluster and multi charged ion, the cluster can be ionized up to q=+15 for n=5000. The following experiments have been successfully started ;
(1) Quantum Tunneling Effect of Cluster Fission.
(2) The Multiplicity of Cluster Fission Fragments depending on the viscosity and charge state of clusters.
(3) Cluster Fission associated with the phase transition.
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