EAPSI: Radiocesium Dynamics in Irrigation Ponds Surrounding the Fukushima Dai-ichi Nuclear Power Plant

EAPSI：福岛第一核电站周围灌溉池塘中的放射性铯动力学

• 批准号: 1614053
• 负责人: Ian Byrnes
• 金额: $ 0.54万
• 依托单位: Byrnes Ian T
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-15 至 2017-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1614053&HistoricalAwards=false
• 关键词: EAPSI; Radiocesium; Dynamics; Irrigation; Ponds

The goal of the summer research project is to improve the understanding of the transport and dynamics of toxic pollutants in the environment around the Fukushima Prefecture of Japan. Radioactive cesium forms (radiocesium) were deposited in the environment as a result of the accident at Fukushima Dai-ichi Nuclear Power Plant (FDNPP) on March 11, 2011. The research will be completed in conjunction with the Institute of Environmental Radioactivity (IER), which is hosted at Fukushima University, Fukushima City. Understanding the continuing effects of the disaster is critical to environmental and policy studies in the both the US and Japan. Studies will be conducted with Dr. Alexei Konoplev at the IER, who pioneered radiocesium transport research at the Chernobyl accident site. The long half life of radiocesium ensures that it will remain in the environment for years to come and the planned research will support the clean up effort in Japan.To collect the required data, samples will be taken from four irrigation ponds that are within ten kilometers of the Fukushima accident site. Cores will be extracted from the bottom sediment in these ponds at a depth of 30 centimeters and returned to the IER. There, the samples will be sliced and counted for radiocesium content. The counting will be accomplished by gamma ray spectrometry with a high purity germanium detector. The characterization accomplished by counting the samples will provide a measure of the volume of radiocesium in the sediment of the irrigation ponds. The results will be compared against data from an analytical model to determine the model's accuracy. Validating the model is important as models are used for making decisions and policy with respect to the nuclear industry. As the world confronts the need for more electricity, nuclear power is a viable alternative that must be weighed against the carefully researched effects on the environment.This award under the East Asia and Pacific Summer Institutes program supports summer research by a U.S. graduate student and is jointly funded by NSF and the Japan Society for the Promotion of Science.

夏季研究项目的目的是提高对日本福岛县环境中有毒污染物的运输和动态的理解。 2011年3月11日，由于福岛Dai-ichi核电站（FDNPP），放射性剖宫产形式（放射性）沉积在环境中。该研究将与环境放射性研究所（IER）结合完成，该研究将于福岛大学（Fukushima University）托管。 了解灾难的持续影响对于美国和日本的环境和政策研究至关重要。 研究将与IER的Alexei Konoplev博士进行，他在切尔诺贝利事故现场开创了放射线运输研究。 放射线的长期寿命可确保它将在未来几年中保留在环境中，并且计划的研究将支持日本的清理工作。要收集所需的数据，将从四个灌溉池塘中获取样品，这些灌溉池来自福岛事故现场十公里以内。 将从这些池塘的底部沉积物中提取岩心，深度为30厘米，然后返回到IER。 在那里，样品将被切成薄片，并计入放射性含量的含量。 计数将通过具有较高纯净锗检测器的伽马射线光谱法完成。 通过计数样品来完成的表征将提供灌溉池沉积物中放射线体积的量度。 结果将与分析模型的数据进行比较，以确定模型的准确性。验证模型很重要，因为模型用于制定核工业的决策和政策。 随着世界面临更多电力的需求，核能是一种可行的替代方案，必须权衡，对环境的精心研究的影响进行了权衡。根据东亚和太平洋夏季研究所计划的奖项支持美国研究生的夏季研究，并由NSF和日本促进科学学会共同资助。