| 激光断代 |
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| 引用本文： | 李虎候.激光断代[J].核技术,1991,14(2):94-100. |
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| 作者姓名： | 李虎候 |
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| 作者单位： | 中国社会科学院考古研究所 |
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| 摘 要： |
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| 关 键 词： | 激光 断代 光敏电子陷阱 置零 |
Optical dating |
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| Li Huhou.Optical dating[J].Nuclear Techniques,1991,14(2):94-100. |
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| Authors: | Li Huhou |
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| Abstract: | Optical dating is a new, and as yet at experimental stage, technique for the direct dating of sediments. As in the TL dating, the zeroing mechanism in optical dating is exposure to light. While in TL dating the paleodose is measured by heating the minerals, in optical dating this is done by exposing the minerals to monochromatic light, e. g. the 514nm green wavelength emitted by an argon ion laser. In optical dating, the light is used to measure the trapped electron population, an which only the electrons accumulated in light-sensitive elec-tron traps and assumed to be completely emptied by sunlight during the process of deposition, are measured. Thus, the zeroing problem can be basically solved by sunlight bleaching in the sediment dating. |
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| Keywords: | Optical dating Light-sensitive electron traps Zeroing |
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