Construction of virtual reality system for radiation working environment reproduced by gamma-ray imagers combined with SLAM technologies
Construction of virtual reality system for radiation working environment reproduced by gamma-ray imagers combined with SLAM technologies
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DOI：
10.1016/j.nima.2020.164286
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发表时间：
2020-10-01
影响因子：
1.4
通讯作者：
Torii, Tatsuo
中科院分区：
文献类型：
--
作者：
Sato, Yuki;Minemoto, Kojiro;Torii, Tatsuo
由东京电力公司控股公司运营的福岛第一核电站（FDNPS），2011年3月11日，东日本大地震引发的大海啸导致核电站熔毁。当时，为了在不暴露于大量辐射的情况下有效地开展工作，有必要了解FDNPS内部的退役工作环境，例如确定放射性物质在现场的分布情况。因此，虚拟现实（VR）作为一种解决方案应运而生。先前已经有关于利用自由移动的伽马射线成像器结合同步定位和绘图（SLAM）技术来可视化放射性物质在三维中的分布的技术的报道。在本文中，我们介绍了成像技术的放射性物质和三维（3D）结构模型的工作环境中，使用自由移动的伽马射线成像仪结合SLAM技术的图像数据的采集。在本研究中，我们还构建了一个VR系统，并在VR空间中显示3D数据，使用户能够在没有辐射的情况下体验实际的工作环境。在创建VR系统时，任何用户都可以通过戴上廉价的头戴式显示设备并使用免费或低成本的应用软件来实现该方法。
The Fukushima Daiichi Nuclear Power Station (FDNPS), operated by Tokyo Electric Power Company Holdings, Inc., experienced a meltdown as a result of a large tsunami caused by the Great East Japan Earthquake on March 11, 2011. At that time, it was necessary to understand the aspects of the decommissioning working environment inside the FDNPS, such as establishing how the radioactive substances were distributed across the site, for work to be done efficiently without exposure to large amounts of radiation. Therefore, virtual reality (VR) emerged as a solution. There have been previous reports done on a technique for visualizing the distribution of radioactive substances in three dimensions utilizing a freely moving gamma-ray imager combined with simultaneous localization and mapping (SLAM) technology. In this paper, we introduce imaging technologies for the acquisition of image data from radioactive substances and three-dimensional (3D) structural models of the working environment, using a freely moving gamma-ray imager combined with SLAM technology. For this research, we also constructed a VR system and displayed the 3D data in a VR space, which enables users to experience the actual working environment without radiation exposure. In creating the VR system, any user can implement this method by donning an inexpensive head-mounted display apparatus and using a free, or low-cost, application software.