1995 Fiscal Year Final Research Report Summary
Optical S'timulated Luminescence (OSL) for Characterization of Meteorities and Astrroid Survey
| Project/Area Number |
06832010
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
惑星科学
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| Research Institution | Osaka University |
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Principal Investigator |
IKEYA Motoji Osaka University, Faculty of Science, Professor, 理学部, 教授 (20023161)
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| Co-Investigator(Kenkyū-buntansha) |
YAMANAKA Chihiro Osaka university, Faculty of Science, Assistant, 理学部, 助手 (10230509)
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| Project Period (FY) |
1994 – 1995
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| Keywords | Thermoluminescence / OSL / TL / laser / dating / geologyy / space science |
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| Research Abstract |
New remote optical stimulated luminescence (R-OSL) and remote thermoluminescence (R-TL) have been developed by exciting He-Ne laser or heating samples at a long distance using infrared CO2 laser light Laser power intensity was controlled using a computer to obtain a linear heating rate. The emission of TL light from object was measured using an image intensifier as to give TL images of a central spot and rings as a function of the time due to thermal diffusion. The thermal conductivity of the material was estimated following the theoretical calculation of the thermal diffusion. It is suggested that R-OSL and R-TL can be used to evaluate the age and materials of asteroids, satellite and planet using surveyer space craft from a long distance.
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