| 年代测定中的β剂量学问题 |
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| 引用本文： | 陈丽姝.年代测定中的β剂量学问题[J].核技术,1988(11). |
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| 作者姓名： | 陈丽姝 |
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| 作者单位： | 中国原子能科学研究院 |
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| 摘 要： | 本文描述了热释光(TL)和电子自旋共振(ESR)测年方法对剂量标定的若干要求。研究了~(90)Sr、~(90)Y在石英中各自的剂量占总剂量的百分比随深度的变化及该源照射不同大小颗粒石英时的平均剂量与表面(或参考点)剂量的关系。指出了忽略这一因素时所带来的误差的大小。
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| 关 键 词： | TL年代测定 ESR年代测定 β剂量学 |
Beta doslmetry in dating |
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| Chen Lishu.Beta doslmetry in dating[J].Nuclear Techniques,1988(11). |
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| Authors: | Chen Lishu |
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| Affiliation: | Institute of Atomic Energy of China |
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| Abstract: | Recently the TL and ESR techniques have become very useful dating methods. The accuracy of dating depends on that of measured values for the absorbed dose in an archaeological sample and for the annual average dose. Some important factors in term of radiation dosimetry are discussed. The ratio of average dose to surface dose for a 90Sr-90Y source irradiating quartz as a function of grain size is calculated. Variations of individual contribution of 90Sr and 90Y to the total dose with depth are also shown. |
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| Keywords: | TL dating ESR dating beta dosimetry |
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