放射性武器
剂量率
辐射防护
等效剂量
环境科学
辐射
有效剂量(辐射)
核医学
容器(类型理论)
盖革计数器
核工程
医学物理学
医学
物理
剂量学
工程类
核物理学
放射科
机械工程
作者
Samuel Queiroz Pelegrineli,Ademir X. Silva,W.S.S. Filho,Luciano SR Oliveira,Aneuri S Amorim,Domingos D’Oliveira Cardoso,Ricardo M. Stenders,Wagner de Souza Pereira,Juraci PR,Edson R. Andrade
标识
DOI:10.1177/07482337221080801
摘要
The application of nuclear technologies in a cargo and container inspection facility can increase the risk of accidents. Estimating the radiation dose in the controlled area generates critical information for elaborating routines aimed at establishing more effective safety procedures. For radiological protection purposes, mapping ambient dose equivalent H*(10) levels is crucial. The radiation source used was a fixed linear accelerator of 4.5 MeV. Five RadEye PRD-ER (Thermo Fisher Scientific) personal radiation monitors and five Geiger-Müller MRAD 111 (Ultra Radac) personal radiation monitors were used for the radiation measurements. The highest ambient equivalent dose rate and dose per scan were found with the Geiger-Müller monitors at values of 5.76E-01 mSv/h and 1.12E-03 mSv, respectively. The results showed that for public individuals, the number of scans at the point of highest dose rate value cannot exceed 893-unit operations. Additionally, the risks involved in the abnormal situation (increased H*(10)) were estimated by using a model to predict the development of solid cancer as a result of occupational radiological exposure. This procedure highlights the risks involved, hence providing initial support to the decision process.
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