核辐射突发事件气载放射性物质大气弥散计算软件的研发  

Research on the nuclear radiation emergencies airborne radioactive material atmospheric dispersion calculation software

作　　者：周强[1] 拓飞[1] 徐翠华[1] 张京[1] 李文红[1] 张庆[1] 张建峰[1] 苏旭[1] 

机构地区：[1]中国疾病预防控制中心辐射防护与核安全医学所 辐射防护与核应急中国疾病预防控制中心重点实验室,北京100088

出　　处：《中国医学装备》2014年第4期15-18,共4页China Medical Equipment

基　　金：卫生行业科研专项(201002009)"辐射危害控制与核辐射卫生应急处置关键技术研究及其应用"

摘　　要：目的:研发气载放射性物质大气弥散计算软件,为在核辐射突发事件发生后能够快速、准确地计算出气载放射性物质的扩散范围。方法:以高斯模式为计算基础,在考虑重力沉降、地面反射和放射性衰变等因素的条件下,进行大气弥散计算。结果:设计并研发出核辐射突发事件气载放射性物质大气弥散计算软件,以表格、制图和下风向坐标点设置等形式给出计算结果。结论:该软件可有效降低气载放射性物质扩散计算的难度,满足核辐射突发事件应急响应的需要。Objective：To calculate the diffusion of airborne radioactive material fastly and accuratly when nuclear radiation emergencies occurs.Methods： Gaussian model were used for basis of the calculation, the conditions such as gravitational settling, ground reflection as well as radioactive decay and other factors were considered during the atmospheric dispersion calculation.Results： A software that can be used to calculate airborne radioactive material atmospheric dispersion under nuclear radiation emergencies were designed and developed. With tables, graphics and other forms downwind coordinates given in the results.Conclusion： This software can effectively reduce some difficulty of the calculation for the airborne spread of radioactive material, and can meet the need during nuclear radiation emergency response.

关 键 词：核辐射 放射性 大气弥散 软件 

分 类 号：R144[医药卫生—公共卫生与预防医学]