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油气勘察样品的多波段激发光释光曲线特征
OSL curve character with multiband stimulation for oil and gas exploration
【摘要】 在热释光研究和应用的基础上,重点探讨了光释光方法在油田勘察中应用的可行性。实验采用的激发波段分别为514nm、600nm、685nm、740nm和800nm,数据采集时间分别为5s、10s、15s、20s、25s、30s和35s。结果表明,同一个样品,经过不同能量的激光激活,可以得到数个不同水平的光子响应。由此证明,光释光发光曲线与热释光发光曲线都是不同能级陷阱中的电子跃迁表现。
【Abstract】 In this paper, we investigate the feasibility of applying optically stimulated luminescence (OSL) method to oil and gas exploration, based on what has been achieved in this application with thermoluminescence (TL) method. Wave bands of 514, 600, 685, 740 and 800 nm were used to stimulate the samples in the test, with 5 s interval between each data-collecting time from 5 s to 35 s. The results showed that from the same sample, a number of photon response levels could be stimulated at different laser energies, and there were electronic dap in different energy traps by OSL or TL luminescence curves.
【Key words】 Thermoluminescence; Optically stimulated luminescence; Oil and gas exploration;
- 【文献出处】 核技术 ,Nuclear Techniques , 编辑部邮箱 ,2009年02期
- 【分类号】P618.13
- 【被引频次】2
- 【下载频次】62