湖光岩砂石的释光剂量研究  

Luminescence dose of sand by the Huguangyan Maar Lake

作　　者：熊正烨[1] 马卫江[2] 朱金汉[2] 陈劲民[1] 丁萍[1] 师文庆[1] 

机构地区：[1]广东海洋大学理学院,湛江524088 [2]中山大学理工学院,广州510275

出　　处：《核技术》2010年第3期237-240,共4页Nuclear Techniques

基　　金：国家自然科学基金(10505033);湛江市科技攻关项目;中山大学基地基金(J0630320;J0730313);中山大学二期"9852工程"本科教育"博学工程"项目;中山大学实验室开放资金项目资助

摘　　要：采集湖光岩玛尔湖周围部分岩洞内的岩样及岩壁下和湖岸边的砂土样品,用粗颗粒法测量它们的热释光和光释光;用复合作用剂量响应模型分析热释光和光释光剂量响应,并计算对应的热释光和光释光古剂量。结果表明:相同采样点的样品,热释光和光释光古剂量间都存在一些差异;不同采样点样品的释光剂量相差很大;热释光古剂量测量值较准确的样品,光释光古剂量测量值与热释光测量值无显著的数量级差别。此测量分析对第四纪火山考古有一定参考意义。Sand samples were collected at different locations from the Huguangyan Maar Lake region in Zhanjiang, Guangdong province in south China. Thermoluminescence （TL） and optical stimulated luminescence （OSL） were measured with coarse grain technique. The TL and OSL dose response were analyzed and their ancient doses were calculated. The result shows that ancient doses measured with TL technique differ from those measured with OSL technique for the same sample, whereas for the samples whose TL ancient dose is close to the veraciousness, there were no evident degree of difference between the ancient doses by OSL and TL. The experiments and analyses can be used for reference in Quaternary period volcano dating.

关 键 词：热释光 光释光 湖光玛尔湖 石英 

分 类 号：O483[理学—固体物理] TL99[理学—物理]