Guidelines on how to Meet the Requirements to Keep All Exposures as Low as Reasonably Achievable PDF Download
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Author: Canada. Atomic Energy Control Board
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 20
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Book Description
Provides guidelines for Atomic Energy Control Board licensees on how to meet regulatory requirements to keep radiation doses received by workers and members of the public as low as reasonably achievable (ALARA), taking into account social and economic factors. Outlines the importance of an explicit commitment by senior management to the objective of restricting exposure, the need for suitable programs to achieve this objective, and the value of reviewing the work periodically to ensure that exposures continue to be adequately controlled. Includes sections on criteria for determining if doses can be deemed to be ALARA without further evaluation; elements in the approach to ALARA; and the judgement of reasonableness in the ALARA process.
Author: Canada. Atomic Energy Control Board
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 20
Get Book Here
Book Description
Provides guidelines for Atomic Energy Control Board licensees on how to meet regulatory requirements to keep radiation doses received by workers and members of the public as low as reasonably achievable (ALARA), taking into account social and economic factors. Outlines the importance of an explicit commitment by senior management to the objective of restricting exposure, the need for suitable programs to achieve this objective, and the value of reviewing the work periodically to ensure that exposures continue to be adequately controlled. Includes sections on criteria for determining if doses can be deemed to be ALARA without further evaluation; elements in the approach to ALARA; and the judgement of reasonableness in the ALARA process.
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: Canada. Atomic Energy Control Board
Publisher:
ISBN:
Category : Radiation
Languages : en
Pages : 10
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Book Description
Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309058953
Category : Science
Languages : en
Pages : 78
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Book Description
Author: International Commission on Radiation Units and Measurements
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 40
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309062977
Category : Political Science
Languages : en
Pages : 293
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Book Description
Naturally occurring radionuclides are found throughout the earth's crust, and they form part of the natural background of radiation to which all humans are exposed. Many human activities-such as mining and milling of ores, extraction of petroleum products, use of groundwater for domestic purposes, and living in houses-alter the natural background of radiation either by moving naturally occurring radionuclides from inaccessible locations to locations where humans are present or by concentrating the radionuclides in the exposure environment. Such alterations of the natural environment can increase, sometimes substantially, radiation exposures of the public. Exposures of the public to naturally occurring radioactive materials (NORM) that result from human activities that alter the natural environment can be subjected to regulatory control, at least to some degree. The regulation of public exposures to such technologically enhanced naturally occurring radioactive materials (TENORM) by the US Environmental Protection Agency (EPA) and other regulatory and advisory organizations is the subject of this study by the National Research Council's Committee on the Evaluation of EPA Guidelines for Exposures to Naturally Occurring Radioactive Materials.
Author: Geoffrey A. M. Webb
Publisher:
ISBN:
Category :
Languages : en
Pages : 8
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Book Description
Author: National Council on Radiation Protection and Measurements
Publisher: Ncrp
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 146
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Book Description
Author: United States. Food and Drug Administration
Publisher:
ISBN:
Category : Medical radiology
Languages : en
Pages : 168
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Shielding for the APS will be such that the individual radiation worker dose will be as low as reasonably achievable (ALARA). The ALARA goals for the APS are to keep the total of the work-related radiation exposure (exposure coming from other than natural or medical sources) as far below 500 person-mrem per year, collective total effective dose equivalent, as reasonably achievable. For an individual APS radiation worker, the goal is to keep the maximum occupational total effective dose equivalent of any one employee as far below 200 mrem/yr as reasonably achievable. The ALARA goal for APS beamline scientists is to keep the total of the work-related radiation exposure (exposure coming from other than natural or medical sources) as far below 100 person-mrem per year, collective total effective dose equivalent, as reasonably achievable. For an individual APS beamline scientist, the goal is to keep the maximum occupational total effective dose equivalent of any one scientist as far below 50 mrem/yr as reasonably achievable. The dose is actively monitored by the radiation monitors on the storage ring wall in each sector and by the frequent area surveys performed by the health physics personnel. For cases in which surveys indicate elevated hourly dose rates that may impact worker exposure, additional local shielding is provided to reduce the radiation field to an acceptable level. Passive area monitors are used throughout the facility to integrate doses in various areas. The results are analyzed for trends of increased doses, and shielding in these areas is evaluated and improved, as appropriate. The APS policy for on-site nonradiation workers in the vicinity of the APS facilities requires that the average nonradiation worker dose be below 0.2 mSv/yr (20 mrem/yr). In addition, the dose at the site boundary from all pathways is required to be below 0.1 mSv/yr (10 mrem/yr). For future modifications of the facility, the doses shall be evaluated and additional shielding provided to meet the policy requirements.
