煤矿井下探伤装置人员误入剂量估算模型研究  

Study on Dose Estimation Model for Personnel Inadvertently Entering Nondestructive Testing Devices in Underground Coal Mines

作　　者：张永富 温彦平 ZHANG Yongfu;WEN Yanping(Shanxi Ecological Environment Monitoring and Emergency Support Center,Taiyuan 030027,China)

机构地区：[1]山西省生态环境监测和应急保障中心,山西太原030001

出　　处：《环境影响评价》2023年第6期119-124,共6页Environmental Impact Assessment

摘　　要：在评审核技术利用项目环评文件中发现,Ⅱ类射线装置的辐射风险预测及风险管理存在诸多内容缺失或错误,无法定量描述在人员误入情况下的受照剂量,难以采取正确的应对措施。以Ⅱ类射线装置在煤矿井下作业环境中的应用为例,基于辐射防护基本理论,构建了一种快速剂量估算的物理和数学模型,目的是准确评估潜在的人员误入辐射风险。通过案例分析,量化了人员受辐射剂量与其移动速度和距离之间的数理关系,同时证明散射线是该环境中主要的辐射源。该研究提出的模型不仅适用于煤矿井下或地面类似的工作环境,也可用于评估其他密封源作为辐射源项的Ⅱ类射线装置。In the process of reviewing environmental impact assessment documents for technical utilization projects,the author discovered numerous content omissions or errors in the radiation risk prediction and risk management of Class II X-ray devices.This results in the inability to quantitatively describe the radiation dose received by individuals in case of accidental entry,making it difficult to take appropriate countermeasures.Taking the application of Class II X-ray devices in underground coal mine working environments as an example,the author constructed a rapid dose estimation physical and mathematical model based on fundamental radiation protection theory,aiming to accurately assess potential accidental radiation risks to personnel.Through case analysis,the mathematical relationship between the radiation dose received by individuals and their movement speed and distance was quantified,and scatter radiation was demonstrated to be the primary radiation source in this environment.The model proposed in this study is applicable not only to underground coal mines or similar ground-level working environments,but also to the evaluation of other Class II X-ray devices that use sealed sources as radiation emitters.

关 键 词：煤矿井下 探伤射线装置 最大可信事故 剂量估算模型 

分 类 号：X34[环境科学与工程—环境工程]