放射性核素迁移分析数据集

本数据集基于放射性核素迁移分析研究，进行了放射性核素在大气中的中小尺度扩散研究研究，通过调研高斯模型、拉格朗日模型、欧拉模型对于放射性核素在大气中的迁移扩散模拟，选定拉格朗日粒子模型以及高斯模型，建立了TMSR事故后果评价模型，其中气象数据中的风场风向都可以自动获取，形成完整快速的模拟。
对放射性核素在大气中的释放与迁移，著名保健物理学家Morgen曾在一次国际学术会议上介绍了美国曼哈顿工程特区早期工作中有关气载放射性核素的环境影响评估的实施计划，1955年美国原子能委员会发表的《气象学与原子能》中提出了气载放射性核素在大气中输运、弥散、沉积的计算模式。我国核工业创建于1955年，1980年以前我国对正常工况下放射性核素的环境影响研究的主要方法是环境监测和做大气扩散实验，随着我国核工业的快速发展，人们对核安全问题得到了越来越多的关注，我国对放射性核素的辐射环境影响评价也逐渐加强。同时，针对各个软件对高斯烟羽模式中参数的选取修正有所不同。在剂量估算部分，一般情况下要计算空气浸没外照射剂量、地面沉降外照射剂量、吸入内照射剂量、食入内照射剂量等。并开展该方法的基础科学研究，完成熔盐堆事故后果评价模拟软件的建立并揭示了放射性核素在大气中扩散的仿真模拟问题，并将模型应用到TMSR-LF1的实际应用中，解决了相关科学问题。

This dataset is developed based on radionuclide migration analysis research, focusing on medium and small-scale atmospheric dispersion of radionuclides. After investigating the radionuclide atmospheric transport and diffusion simulation capabilities of Gaussian models, Lagrangian models, and Eulerian models, the Lagrangian particle model and Gaussian model were selected to establish the TMSR Accident Consequence Assessment Model. Wind field and wind direction data from meteorological datasets can be automatically acquired, enabling complete and rapid simulation.

Regarding the release and migration of radionuclides in the atmosphere, renowned health physicist Morgen introduced the implementation plan for environmental impact assessment of airborne radionuclides in the early work of the U.S. Manhattan Engineer District at an international academic conference. In 1955, the U.S. Atomic Energy Commission published *Meteorology and Atomic Energy*, which proposed computational models for the transport, dispersion, and deposition of airborne radionuclides in the atmosphere. China's nuclear industry was established in 1955. Before 1980, the primary methods for studying the environmental impact of radionuclides under normal operating conditions were environmental monitoring and atmospheric diffusion experiments. With the rapid development of China's nuclear industry, public attention to nuclear safety issues has increased, and China's radiological environmental impact assessment for radionuclides has gradually been strengthened. Meanwhile, different software packages have varying parameter selection and correction methods for the Gaussian plume model. In the dose estimation section, calculations typically include external exposure doses from air immersion and ground deposition, as well as internal exposure doses from inhalation and ingestion, among others. Basic scientific research on this method was conducted, and a simulation software for molten salt reactor accident consequence assessment was developed, which addresses the simulation issues of radionuclide atmospheric dispersion. The model was applied to the practical scenario of TMSR-LF1, solving relevant scientific problems.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于放射性核素在大气中的迁移扩散分析，通过高斯和拉格朗日粒子模型开展中小尺度模拟研究。它建立了TMSR事故后果评价模型，用于解决放射性核素扩散的仿真模拟问题。