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- Heating can reduce the emanation coefficient of Rn effectively, which can be used as a new measure to defend against radon and radon daughters. 灼烧法是一种有效降低氡射气析出率的方法,可作为对氡射气及放射性子体的防护手段加以利用。
- radon and radon daughters 氡及氡子体
- The daughter nuclides of radon and thoron tend to become attached. 氡和钍射气的子体易被气溶胶吸附。
- The continuous measuring for environmental radon and radon progeny is the premise to calculate the radiation dose from radon precisely. 环境氡和氡子体连续测量是准确计算氡的辐射剂量、客观评价氡危害的前提。
- Development of a Method for Simultaneous Monitoring of Respirable Dust and Radon Daughters in Mine 矿井作业场所中呼吸尘与氡子体同时监测的方法研究
- Radon and Decay Products-is There a Risk Outside the Lung? 氡及其子体对肺以外的组织器官是否有危险?
- The personal annual effective dose equivalent caused by radon daughters is 0.88 mSv. 氡子体产生的个人年有效剂量当量为0.;88mSv。
- Ventilation has been proved to be a main method to eliminate radon and its daughters in uranium mines. 通风是排除铀矿井空气中的氡及其子体的主要方法。
- The absorbed dose to lung tissue as a function of age of rabbitsby Inhalation of short-lived radon daughters is described in this paper. 本文介绍吸入短寿命氡子体的家兔肺组织吸收剂量随日龄的变化。
- In addition, reference is made to the novel techniques of the determination of radon and its daughter products in the atmosphere. 此外，还介绍了一些新方法，例如测量大气中的氡及其衰变产物。
- Water vapor, temperature, and radon and their fluxes in an idealized equilibrium boundary layer over land CO 水汽,温度,和氡之间的耦合以及它们在地面上理想化的平衡边界层中的流通量
- A continuous measuring apparatus base on deduction arithmetic for environmental radon and radon progeny 基于扣除算法的环境氡和氡子体连续测量仪
- Meanwhile, study and utilization of radon and its daughters is one of the standard for gaseous substance of radioactive measurement in ionizing radiation metrology. 同时,研究和利用氡及其子体,也是电离辐射计量学中气态放射性物质测量具有标志性的重要标准之一。
- The balance rate compared radon and its daughter nuclide with their mother nuclide is increased along with the remain-time extending,and reac... 证明制备的镭标准源密封性也非常好,完全能满足测量铀系核素的要求。
- The transferring law of indoor Radon and its daughters is accounted. A numerical simulation example and some nadiation protective measures are also given. 讨论了室内氡的迁移转化规律并用数值模拟对实例进行计算;还讨论了室内氡的防护措施.
- Radon and its daughters not only are the decay product of natural radioactive uranium series and thorium series, but also are one of natural radiation source. 氡及其子体是天然放射性系列中的铀系、钍系衰变产生的,是人类受天然辐射主要的来源之一。
- The radioactive dust will contribute to higher levels of uranium and radon. 放射性尘埃会形成铀和氡的高值。
- In this paper,the migration model based on the theoretical hypotheses,with the help of the computer simulation,have designed the simulation system of radon and its daughters. 在氡及其子体运移假说的基础上,将计算机模拟技术引入氡运移的研究中,开发出一套在理想条件下氡及其子体运移的模拟系统。
- Any of several radioactive gases that are isotopes of radon and are products of radioactive decay. 射气几种氡的同位素的放射性气体，是放射性物质衰变的产物
