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.

夏季研究项目的目标是提高对日本福岛县周围环境中有毒污染物的传输和动态的了解。 2011 年 3 月 11 日福岛第一核电站 (FDNPP) 事故导致放射性铯形式（放射性铯）沉积在环境中。该研究将与环境放射性研究所 (IER) 合作完成，在福岛市福岛大学主办。 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 博士一起进行，他是切尔诺贝利事故现场放射性铯迁移研究的先驱。 放射性铯的半衰期较长，确保其在未来几年内仍会保留在环境中，计划中的研究将支持日本的清理工作。为了收集所需的数据，将从十公里范围内的四个灌溉池塘采集样本福岛事故现场。 将从这些池塘 30 厘米深的底部沉积物中提取岩心并返回 IER。 在那里，样品将被切片并计算放射性铯含量。 计数将通过伽马射线光谱法和高纯度锗探测器来完成。 通过对样品进行计数来完成的表征将提供灌溉池沉积物中放射性铯体积的测量。 结果将与分析模型的数据进行比较，以确定模型的准确性。验证模型非常重要，因为模型用于制定核工业方面的决策和政策。 当世界面临对更多电力的需求时，核电是一种可行的替代方案，必须权衡仔细研究的对环境的影响。东亚和太平洋夏季学院计划下的该奖项支持美国研究生的夏季研究，由 NSF 和日本学术振兴会共同资助。