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首页> 外文会议>International Conference on Advances in Destructive and Non-Destructive Analysis for Environmental Monitoring and Nuclear Forensics; 20021021-20021023; Karlsruhe; DE >RADIOLOGICAL ASSESSMENT AND MANAGEMENT OF A RADIOACTIVE SPILL AT A LIQUID WASTE TREATMENT FACILITY: A CASE STUDY
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RADIOLOGICAL ASSESSMENT AND MANAGEMENT OF A RADIOACTIVE SPILL AT A LIQUID WASTE TREATMENT FACILITY: A CASE STUDY

机译：液体废物处理设施放射性泄漏的放射学评估和管理：案例研究

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摘要

The radiological assessment and management of a radioactive spill from a liquid waste treatment facility is presented. An area around the facility was contaminated with various radionuclides that were dispersed into the soil. A method based on the European Basic Safety Standards was used to contain the risks associated with the contamination. This method is based on several stages: removal of doubt, pre-diagnosis, initial diagnosis, a simplified risk study, a detailed risk study, and assistance in the selection of the remedial strategy. The adopted guideline criteria enable the assessment sequence to be interrupted and appropriate decisions to be taken. The introduced case study proceeded to the simplified risk study stage, since the site was small and it was relatively easy to remove and store the contaminated soil. An area contamination monitor was used to locate hot spots while preliminary investigations of the samples were made using a high resolution gamma spectrometer with a hyper pure germanium detector and a low level alpha-beta counter. According to the obtained results, the removal of the surface 30 cm would be considered as appropriate remedial action to resume background levels.
机译：介绍了液体废物处理设施产生的放射性泄漏的放射学评估和管理。设施周围的区域被分散在土壤中的各种放射性核素污染。使用了基于欧洲基本安全标准的方法来控制与污染有关的风险。该方法基于多个阶段：消除疑虑，进行预诊断，初步诊断，简化的风险研究，详细的风险研究以及协助选择补救策略。通过的准则可以中断评估程序并做出适当的决定。引入的案例研究进入了简化的风险研究阶段，因为场地很小，并且相对容易移除和存储受污染的土壤。使用区域污染监测仪来定位热点，同时使用带有超纯锗探测器和低水平α-β计数器的高分辨率伽马能谱仪对样品进行初步研究。根据获得的结果，将表面30厘米的去除视为恢复背景水平的适当补救措施。

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