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Title: Assessment of potential radiation exposures by uncontrolled recycle or reuse of radioactive scrap metals

With current waste monitoring technology it is reasonable to assume that much of the material designated as low-level waste, generated within nuclear facilities, is in fact uncontaminated. A criterion for uncontrolled disposal of low-level radioactive contaminated waste is that the radiation exposure of the public and of each individual caused by this disposal is so low that radiation protection measures need not be taken. The International Atomic Energy Agency (IAEA) suggests an annual effective dose of 10 {micro}Sv as a limit for the individual radiation dose and derived the initial control levels of residual radioactivity based on the Publication 30 of the International Commission on Radiological Protection (ICRP). In 1990, new recommendations on radiation protection standards were developed by ICRP to take into account new biological information related to the detriment associated with radiation exposure. Adoption of these recommendations necessitated a revision of the Commission's secondary limits contained in Publication 30. This study summarizes the potential radiation exposure from valuable scrap metal considered for uncontrolled recycle by new ICRP recommendations. Potential exposure pathways to people were analyzed and concentrations leading to an individual dose of 10 {micro}Sv/year were calculated for 14 key radionuclides. These potential radiation doses are compared withmore » the results of previous study.« less
Authors:
;
Publication Date:
OSTI Identifier:
20018992
Resource Type:
Journal Article
Resource Relation:
Journal Name: Waste Management; Journal Volume: 19; Journal Issue: 7-8; Other Information: PBD: 1999
Research Org:
Korea Advanced Inst. of Science and Technology, Taejon (KR)
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 61 RADIATION PROTECTION AND DOSIMETRY; SCRAP METALS; RADIOACTIVE WASTES; RECYCLING; RADIATION DOSES; LOW-LEVEL RADIOACTIVE WASTES; ENVIRONMENTAL EXPOSURE PATHWAY; WASTE PRODUCT UTILIZATION