Emily A Caffrey, Colby D Mangini, Arthur S Rood, Helen A Grogan, John E Till
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引用次数: 0
Abstract
Abstract: Disposal of naturally occurring radioactive material (NORM) and technologically enhanced naturally occurring radioactive material (TENORM) waste in the State of Oregon is prohibited unless it can be demonstrated that the material is nonradioactive as defined by its radionuclide content and potential for emission into the environment. It was determined that a radon flux on the surface of the waste no greater than 0.37 Bq m -2 s -1 would meet this requirement. This article provides a method to estimate the radon flux through indirect measurement of the radon mass exhalation rate. It describes a device that consists of a radon accumulation chamber coupled with a continuous radon monitor and software to process the results and calculate the radon mass exhalation rate and radon flux for an unknown sample of approximately 500 g. The chamber system was tested with a uranium ore sample.
摘要:禁止在俄勒冈州处置自然发生的放射性物质(NORM)和技术增强的自然发生放射性物质(TENORM)废物,除非能够证明该材料根据其放射性核素含量和排放到环境中的可能性而被定义为非放射性。经确定,废物表面的氡通量不大于0.37 Bq m -2 s -1即可满足这一要求。本文提出了一种通过间接测量氡质量呼出率来估算氡通量的方法。它描述了一种装置,该装置由氡积累室与连续氡监测仪和软件组成,用于处理结果并计算约500克未知样品的氡质量呼出率和氡通量。用铀矿石样品测试了该腔室系统。
期刊介绍:
Health Physics, first published in 1958, provides the latest research to a wide variety of radiation safety professionals including health physicists, nuclear chemists, medical physicists, and radiation safety officers with interests in nuclear and radiation science. The Journal allows professionals in these and other disciplines in science and engineering to stay on the cutting edge of scientific and technological advances in the field of radiation safety. The Journal publishes original papers, technical notes, articles on advances in practical applications, editorials, and correspondence. Journal articles report on the latest findings in theoretical, practical, and applied disciplines of epidemiology and radiation effects, radiation biology and radiation science, radiation ecology, and related fields.