Development of a Radiation Survey Device for a Multipurpose Unmanned Surface Vehicle
Development of a Radiation Survey Device for a Multipurpose Unmanned Surface Vehicle
复制标题
多用途无人地面飞行器辐射测量装置的研制
DOI：
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发表时间：
2021
影响因子：
0.8
通讯作者：
Hiroki Furuyama
中科院分区：
文献类型：
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作者：
Y. Sanada;K. Miyamoto;H. Momma;N. Miyazaki;Takamasa Nakasone;J. Tahara;S. Baba;Hiroki Furuyama
摘要2011年3月日本福岛第一核电站（FDNPS）事故后，大量挥发性放射性核素被释放到大气中。海底沉积物中这些放射性核素的清单对于评估其环境影响非常重要。
行为和对水生生物的影响。我们开发了一种专用的辐射调查设备，可以安装在一个多用途的无人水面车辆上，称为滨通海洋调查智能船（i-BoSH）。i-BoSH和专用辐射测量设备都是
由当地一个财团开发，用于调查事故造成严重破坏的地方。辐射测量装置可以在现场测量放射性，并收集八个沉积物样本。该设备还包含传感器，用于测量i-BoSH与海底之间的相对距离
作为其他基本的海水信息，例如温度。在福岛一个放射性铯污染的渔港近海进行了一次全面测试，其中包括对沉积物进行现场辐射测量和收集沉积物芯样。因此，有效性
从渔港出发的两次巡航在12个采样点成功操作，证实了这一装置的有效性。沉积物岩芯取样的实验室和实地测量结果与现场辐射测量结果之间分别存在良好的相关性。成功
该装置的应用预计将超越FDNPS周围的环境调查，以更全面地监测核设施周围的辐射和更长的事故后时期。
Abstract Large quantities of volatile radionuclides were released into the atmosphere after the Fukushima Daiichi Nuclear Power Station (FDNPS) accident in March 2011. An inventory of these radionuclides in seafloor sediments is important for evaluating their environmental
behavior and effects on aquatic organisms. We developed a dedicated radiation survey device that can be installed on a multipurpose unmanned surface vehicle called the Intelligent Boat for Oceanological Survey from Hama-dori (i-BoSH). Both the i-BoSH and dedicated radiation survey device were
developed by a local consortium to survey places of heavy damage from the accident. The radiation survey device can measure radioactivity in-situ and collect eight sediment samples. The device also contains sensors to measure the relative distance between the i-BoSH and the seafloor as well
as other fundamental seawater information such as temperature. A comprehensive test that included in-situ radiation measurements in sediment and collection of sediment core samples was conducted offshore from a radiocesium-contaminated fishing port in Fukushima. Consequently, the effectiveness
of this device was confirmed via a successful operation at 12 sampling points with two cruises from the fishing port. Good correlations were observed between the laboratory and field measurement results of the sampled sediment cores and the in-situ radiation survey, respectively. Successful
application of this device is expected to go beyond environmental surveys around the FDNPS to more general radiation monitoring around nuclear facilities and longer post-accident periods.