| 石英β剂量的蒙特卡罗模拟 |
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| 引用本文： | 陈少文,黄龙,朱德海,唐强,刘小伟.石英β剂量的蒙特卡罗模拟[J].核技术,2012(3):185-188. |
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| 作者姓名： | 陈少文 黄龙 朱德海 唐强 刘小伟 |
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| 作者单位： | 东莞理工学院;中山大学物理科学与技术学院 |
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| 基金项目： | 东莞市高等院校科研机构科技计划项目(No.200910814045)资助 |
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| 摘 要： | 用蒙特卡罗方法对TL或OSL测定年代中用β源进行照射时石英样品的吸收剂量进行模拟,研究石英薄片样品厚度和石英单颗粒大小对吸收剂量的影响。模拟程序用EGSnrc/DOSRZnrc,圆柱形薄片样品直径0.97cm,厚度10–500μm,单颗粒大小60–300μm。结果表明,吸收剂量与薄片样品的厚度有关,相对剂量的最大差异达10%;石英单颗粒中相对剂量随颗粒变小而增大,最大差异达19%。这些因素在测定年代过程中需加以考虑。
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| 关 键 词： | 石英 β剂量 蒙特卡罗模拟 |
Monte Carlo simulation of absorbed dose in quartz from beta rays |
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| CHEN Shaowen,HUANG Long,ZHU Dehai,TANG Qiang,LIU Xiaowei.Monte Carlo simulation of absorbed dose in quartz from beta rays[J].Nuclear Techniques,2012(3):185-188. |
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| Authors: | CHEN Shaowen HUANG Long ZHU Dehai TANG Qiang LIU Xiaowei |
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| Affiliation: | 1(Dongguan University of Technology,Dongguan 523808,China) 2(School of Physics Science and Technology,Sun Yat-Sen University,Guangzhou 510275,China) |
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| Abstract: | The absorbed dose in quartz samples irradiated by β rays in TL or OSL dating protocol was simulated using the EGSnrc /DOSRZnrc code.Effects of thickness and grain size of the quartz samples on the absorbed dose were evaluated with the samples of Φ0.97 cm×(10–500) μm,in grain size of 60–300 μm.The results show that the absorbed dose in quartz is relative to the sample thickness,and the maximum difference of the relative dose can be up to 10%.The absorbed dose is relative to the grain size,too.The relative dose increases with decreasing grain size,and the maximum difference can be up to 19%.These factors should be considered in the dating. |
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| Keywords: | Quartz β absorbed dose Monte Carlo simulations |
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