数字智能化放射源运输车

从采集粒子射线计数,红外数据通信,实时监测报警,GPRS等问题出发,实现放射源的数字化管理,完成对放射源存储、运输和使用各环节的实时监控,构架智能化放射源运输车,从而实现对放射源的可靠安全监管.     

试论放射源管理的新途径

通过介绍我国放射源管理现状，分析现阶段放射源监督管理中存在的问题，提出了对放射源实施全过程管理，必须关口前移和提前介入；按放射源种类数量划定管理权限；放射源转让审批单实施三级审批，逐级监管的新思路。     

废放射源长期贮存现状

简单介绍了国际上对对废放射源的长期贮存方法一直接贮存、加外包装贮存和整备后贮存,分别介绍了英国、奥地利、白俄罗斯、捷克、比利时等国废放射源的贮存现状;介绍了我国对废放射源的贮存方法及北京城市放射性废物库、中国辐射防护研究院废放射源贮存库、核工业废放射源集中贮存库、国家废放射源集中贮存库对废放射源的贮存情况,以期对我国废放射源的长期贮存研究有所帮助。     

格鲁吉亚的放射源回收

在2006年夏追踪格鲁吉亚丢失的放射源运动的前三天,两个已被废弃的具有潜在危害的放射性装置成功地得到安全管理。这种已被废弃的放射源被称为孤儿放射源。格鲁吉亚环境部和国际原子能机构工作组,在搜寻与外界隔离的拉查高山地区时,在一座已废弃工厂地面的一堆垃圾里发现了一个强放射源。该工作组还在一所房子内工作台上一只装有螺母螺栓的白铁罐里发现了第二个较小的放射性稍弱的放射源,仅有一层很薄的木墙将该放射源与家庭卧室隔开。在放置第一个放射源的伊里村,放射源的放射本底水平高出该村中心正常水平值12倍。“如果有人把这种放射源…     

青海放射源被盗事故中破损放射源的现场定值测量

描述了青海放射源被盗事故中破损放射源的现场定值测量的方法,分析了测量中存在的主要不确定度的大小,为该事故处理提供了重要的技术支持,对今后放射源丢失事故的处理特别是现场定值测量提出了建议.     

放射源安全管理现状及对策

本文通过介绍国外放射源管理动态，分析我国放射源管理的现状和存在的主要问题，提出了加强放射源管理的对策和建议。     

浅谈中国放射源的科学化管理

为了加强对放射源的监督管理，中国政府调整了监管体制，并吸收国际先进的管理经验，结合中国的实际情况，出台了一系列科学化举措，包括对放射源实行统一全过程监管、对放射源实行身份管理、建立全国放射源监管信息系统、对放射源实行分类管理等。     

放射源自动屏蔽装置设计

介绍了一种放射源自动屏蔽装置的设计。该装置采用屏蔽体和电控旋转或平移装置组合设计,可用于辐射防护仪器的性能测试,具有自动使放射源处于屏蔽状态或暴露状态功能,解决了测试过程中放射源频繁取放的问题,提高了测试效率,避免了放射源对测试人员身体健康带来的危害。     

放射源的制备技术及其应用

介绍了放射源制备的主要技术、我国放射源研究和应用现状,提出了我国在放射源制备和应用方面需要重点关注的方向,以推动放射源在科学研究、医学和工业自动化等领域的应用。     

格鲁吉亚发现放射源

【塔斯社 1998年 8月 1日报道】　在格鲁吉亚的前苏联军队驻地发现了放射源 ,格鲁吉亚负责检测和清理在前苏联军队驻地和核试验场地的放射源的国家委员会星期六向记者们通报了这一消息。在格鲁吉亚西部泰尔诺斯基 (Terzhol-sky)地区戈多盖里 (Godogari)村附近发现一个放射源 ,在那儿发现 30个地区小的辐射点 ,总辐射水平为 6个伦琴 ,污染了 6 0平方米范围内 5— 10厘米深的土壤。格鲁吉亚环境部部长 Nino Chkhobadze告诉记者说在泰尔诺斯基地区的清理工作已经完成。放射源已经安全 ,并被转移到一个专门的暂时贮存设施中。 Chkhobadze说 ,…     

放射性废物安全的阶段性研究成果--《放射性废物安全通论》

放射性废物安全是辐射防护与辐射源安全科学同放射性废物管理技术相互作用的产物。在国际上,放射性废物安全已经成为辐射防护与辐射源安全科学发展的前沿领域之一。《放射性废物安全通论》是以文集形式即将出版的一本专著,是近20年来笔者等在此领域进行学习、思考、实践、讨论和总结的一个记录。本文综述了该书的要旨。     

建材产品中放射性的研究

应用γ能谱仪和最小二乘法解析谱方法，研究了31种地板砖中放射性核素的含量，发现不同地板砖中U、Th、Ra和^40K的放射性含量有较大的差别，少数产品的含量甚至超出了国家规定的建材放射卫生防护标准。     

Radioactive properties of fragmental products

As a result of the difficulties of preparation and the high cost of sources of ionizing radiations from individual fragmental isotopes, it is expedient to examine the possibility of using sources of an unseparated mixture of uranium fission products. Theoretical and experimental data on the variation of energy and intensity of the total and also - and -radiations with time are given for different fragmental isotopes and their mixtures. It is shown that the mean energy of -active isotopes reaches a maximum for two-year fragments, while for -active isotopes the maximum is found in the case of two to six month fragments.     

Microwave Vitrification of Radioactive Wastes

There are indisputable advantages to using microwave radiation in technological processes for reprocessing liquid wastes, and they have been partially or completely realized in the apparatus developed. Testing of the apparatus has confirmed that it holds great promise for liquifying radioactive wastes with a complicated composition in a large range of the salt concentration in the initial solution.__________Translated from Atomnaya Energiya, Vol. 98, No. 4, pp. 288–293, April, 2005.     

Radioactive contamination of the atmosphere

This article is a review of foreign works on the study of radioactive contamination of the atmosphere due primarily to diffusion of fission fragments from atomic tests. Several properties of fission fragment activity, namely its decay rate and the composition of its radiation, are considered, and methods are described for monitoring the fallout from the atmosphere and calculating the resulting radiation dose. The dose is almost everywhere much less than the permissible limit. At several places, however, fallout densities and activity concentrations are observed which are close to the allowable limit. A method for constructing the trajectories of air masses is briefly described, and it is shown that radioactive clouds migrate over the whole world, producing a radioactive layer in the atmosphere at an altitude of 8–12 km consisting primarily of the long-lived nuclides Sr⁹⁰, Ce¹⁴⁴, and Pu²³⁹. Of the fission fragments contaminating the earth's surface the most dangerous is Sr⁹⁰ which has the property that it accumulates in the organisms of domesticated animals and thus enters the human organism. The radiation level at points fat from the test areas is at present far below the allowable limit in the sense of the possible occurrence of somatic diseases, although even at the present radiation level, effects on posterity cannot be excluded.     

Clearance for Radioactive Waste

正The clearance plays an important role in radioactive waste management.It is an effective tool for waste minimization and also an important application of optimization of radiation protection in waste management.The study of clearance is significant to make waste management legitimate,safe and economical.     

低水平放射性废物的混合

介绍了美国低水平放射性废物混合的现状及其4种混合方案，提出了在我国实施放射性废物混合的建议。     

Acid Digestion of Radioactive Combustible Wastes

An iteration method using the Pade approximation is described to accelerate the inner iteration of finite difference equations of two-dimensional diffusion equation In the case of void problems where the system includes regions of very low density, the convergence rate of the usual Iteration method becomes extremely slow, and it becomes often impossible to obtain a converged solution. It is found that the present method using the Pade approximation can give the converged solution for such void problems.