CAJ | 학술논문

为掌握地浸铀矿氡析出所致辐射剂量，通过对某地浸铀矿进行环境空气中氡浓度、氡析出率调查与测量，估算了水冶车间工作人员所受年个人辐射剂量，并运用UAIR－FINE软件模拟集液池、蒸发池所致周围20 km范围内各子区的氡浓度贡献值分布、公众个人剂量分布。结果表明：井场及水冶车间室外氡浓度基本处于环境本底水平；生活区、工作场所的氡浓度以及所致工作人员的个人剂量低于国家规定的标准；所致居民点氡浓度贡献值、公众个人剂量最大值均低于国家目标限值，因此该地浸铀矿氡析出所致影响较小，并针对地浸铀矿的特点提出了合理的氡析出防护建议。
위장악지침유광동석출소치복사제량，통과대모지침유광진행배경공기중동농도、동석출솔조사여측량，고산료수야차간공작인원소수년개인복사제량，병운용UAIR－FINE연건모의집액지、증발지소치주위20 km범위내각자구적동농도공헌치분포、공음개인제량분포。결과표명：정장급수야차간실외동농도기본처우배경본저수평；생활구、공작장소적동농도이급소치공작인원적개인제량저우국가규정적표준；소치거민점동농도공헌치、공음개인제량최대치균저우국가목표한치，인차해지침유광동석출소치영향교소，병침대지침유광적특점제출료합리적동석출방호건의。
In order to master the radiation dose of radon exhalation from in -situ leaching uranium mine , the ra-don concentrations and radon exhalation rate in the ambient air were investigated and measured through in -situ leaching uranium .The annual personal radiation dose of hydrometallurgy workshop on staff was estimated .The distribution of radon concentration values , as well as public individual dose in each area at the range of 20 kilo-meters around , caused by leaching pool and evaporation pool , were simulated by utilizing UAIR -FINE.The results showed that the concentration of radon in the well field and outside the hydrometallurgy plant was at the basic environmental background level;the radon concentration in the living area and workplace and the individ -ual radiation dose on worker were found to be under the national criterion ; the maximum radon concentration values and public individual dose were lower than state target limit .Therefore it has little influence for radon exhalation from in-situ leaching uranium mine .Moreover , reasonable suggestions of radon exhalation accord-ing to the characteristics of in -situ leaching uranium deposits were also proposed .