Radiological protection against exposure to naturally occurring radioactive material
نویسندگان
چکیده
منابع مشابه
Radiological protection in North American naturally occurring radioactive material industries.
All soils and rocks contain naturally occurring radioactive material (NORM). Many ores and raw materials contain relatively high levels of natural radionuclides, and processing such materials can further increase the concentrations of natural radionuclides, sometimes referred to as 'technologically enhanced naturally occurring radioactive material' (TENORM). Examples of NORM minerals include ur...
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Introduction: The risk of radioactivity addresses human life directly. The natural rock radioactivity is mainly due to 232Th, 238U), and 40K series. Activities involving blasting, crushing, and processing of rocks into numerous pieces lead to release of radionuclides into the atmosphere in the form of dust particles. M...
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Over the years there have been many occasions when it was asserted that coal-fired power stations emitted more radioactivity (from NORM) than was released anywhere in the nuclear fuel cycle. While having some basis in fact the claim is generally not correct now. Today the contention regarding NORM tends to be in relation to steel and other materials released from demolished industrial facilitie...
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The main issue in view of NORM-impacted sites 1 is how such sites, e.g. radium contaminated sites, uranium liabilities, sites exploited for the mining of metals associated with NORM and wastes arising from industries processing or generating other kinds of NORM, are assessed and regulated. In view of the implementation of the new Basic Safety Standards (BSS), the regulations apply to the manage...
متن کاملMeasurements for the Development of a Simulated Naturally Occurring Radioactive Material
Nineteen different commercially available samples containing naturally occurring radioactive materials (NORM) (i.e., natural uranium, thorium, radium and potassium) were investigated, including zircon sand, cat litter, roofing tiles, ice melt and fertilizer among others. A large variation in isotopic composition was observed across the measured samples. As a result of this observation, a need w...
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ژورنال
عنوان ژورنال: Radiation Protection and Environment
سال: 2015
ISSN: 0972-0464
DOI: 10.4103/0972-0464.169367