The Safety Evalution Of Radiactive Source In Uranium Geological Exploration

Taking the uranium geological exploration of No*** as an example, the thesis focuses on the study of the radioactive source's security node spreading and radioactive source emission measurement in storage, transportation and use. Moreover,it want to find how to apply and practice the assessment method in the occupational disease hazard evaluation and radiation protection field, try to establish the radioactive source's safety assessment system in uranium geological prospecting. It aims to gain the entire workplace distribution and technical flow of the radioactive source's storage, transportation and use and hidden safety trouble and radioactive protection article outfit and usage, protection measure and effect taken by worker, radioactive source safety system, worker's health ward, individual radiation dose inspection, safe work and defending training, Emergency preparation and response etc, finally to analyze the source container's defending performance,the radiation dose in and out of the source sink, and investigate the affect of running sealed source sink to the circumstance and people.The thesis establishes the risk assessment data scientifically according to the gained information, identifying the risk of the sealed radioactive source worker by comparison and analogy, confirming the risk event, evaluating the risk qualitatively, determining the risk rank. It sets down the strategy of risk to be dealt with and treated preferentially, confirming the key control point and measures to prevent or reduce the radioactive danger event, thus guaranteeing the party's safe manufacture and employee's health. Simultaneously, check out the method's practicability and discuss the assessment system's instructional signification to uranium geological exploration industry.