U.S.-Denmark Cooperative Research on Dosimetric Applicationsof Optically Stimulated Luminescence

美国-丹麦光激发光剂量测定应用合作研究

• 批准号: 9400070
• 负责人: Stephen W.S. McKeever
• 金额: $ 0.8万
• 依托单位: Oklahoma State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-15 至 1995-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9400070&HistoricalAwards=false
• 关键词: U.S.; Denmark; Cooperative; Research; Dosimetric

9400070 McKeever This award supports Professor Stephen McKeever of Oklahoma State University to initiate collaborative research with Dr. Lars Boetter-Jensen of the Nuclear Safety Research Department of Riso National Laboratory, Roskilde, Denmark. The ultimate objective of their research is to develop techniques for the application of Optically Stimulated Luminescence (OSL) in retrospective radiation dosimetry. Their current research is investigating the mechanisms of OSL sensitivity variations in natural materials such as quartz and feldspar. Recent developments pioneered at Riso during studies at Chernobyl in the Ukraine suggest that the silicate minerals found in common house bricks could potentially be employed as local dosimeters. Collaboration with Dr. McKeever brings expertise in computer modeling of materials physics to the unique experimental facilities of the Danish group. A better understanding of the sensitivity variations which occur among samples as a result of thermal history, or other factors, will enable them to develop techniques to enhance the sensitivity of these measurements. Further enhancements seem likely as a result of the collaboration with Dr. McKeever. This is an unusual fundamental study in radiation physics which could have very valuable practical applications in the measurement of radiation exposures. The development of a better local dosimeter is important to both the U.S. and the world at large since the measurement of radiation exposure history to local environments is of major concern. If successful, the simplicity of methods using natural local materials would allow rapid radial mapping of the extent and degree of radioactive contamination. ***

9400070 McKeever该奖项支持俄克拉荷马州州立大学的Stephen McKeever教授与丹麦罗斯基勒Riso国家实验室核安全研究部的Lars Boetter-Jensen博士开展合作研究。 他们研究的最终目标是开发用于回顾性辐射剂量测定的光激励发光（OSL）技术。 他们目前的研究是调查天然材料如石英和长石中光释光灵敏度变化的机制。 在乌克兰切尔诺贝利研究期间，Riso的最新进展表明，在普通房屋砖中发现的硅酸盐矿物可能被用作当地剂量计。 与McKeever博士的合作为丹麦集团独特的实验设施带来了材料物理计算机建模方面的专业知识。 更好地了解样品之间由于热历史或其他因素而发生的灵敏度变化，将使他们能够开发提高这些测量灵敏度的技术。 与McKeever博士的合作可能会带来进一步的增强。 这是辐射物理学中一项不寻常的基础研究，在测量辐射照射方面可能具有非常有价值的实际应用。 由于当地环境的辐射暴露历史的测量是主要关注的问题，因此开发更好的当地剂量计对美国和整个世界都很重要。 如果成功的话，使用当地天然材料的简单方法将能够快速绘制放射性污染范围和程度的放射性地图。 ***