Index | Site Map | FAQ | Facility Info | Reading Rm | New | Help | Glossary | Contact Us |
Low-Level Radioactive Waste Classification, Characterization, and Assessment: Waste Streams and Neutron-Activated Metals (NUREG/CR-6567)On this page: Download complete document The following links on this page are to documents in Adobe Portable Document Format (PDF). See our Plugins, Viewers, and Other Tools page for more information. For successful viewing of PDF documents on our site please be sure to use the latest version of Adobe. Publication InformationManuscript Completed: July 2000 Prepared by Pacific Northwest National Laboratory P. R. Reed, NRC Project Manager Prepared for AbstractThis study was conducted to provide NRC, other
federal and state regulatory agencies, nuclear
utilities, and low-level radioactive waste (LLW)
managers with further information on radionuclide
source terms that will improve the health and safety
aspects of LLW management and disposal. The
goal of this work was to enhance the understanding
of the occurrence, distribution, and assessment of
the radiological impacts of radionuclides associated
with neutron-activated metals and other LLW
streams ftom commercial nuclear power stations.
This study focused on identifying and characterizing
a group of very long-lived radionuclides that are not
specified in 10 CFR Part 61, but which are present
in significant concentrations in various types of
LLW materials generated at commercial nuclear
power stations. The concentrations of 10Be, 36Cl, 93Mo, 93mNb, 108mAg, 113mCd, and 121mSn (as well as
the specified 10 CFR Part 61 radionuclides) have
been measured in a variety of neutron-activated
metal and spent primary demineralization resin
LLW samples obtained from U. S. nuclear power
stations. This work required the development of
new or modified radiochemical separation,
purification, and counting procedures to measure
these radionuclides in the LLW materials of
interest. Of this group of radionuclides, the 10Be,
36Cl, and 108mAg appear to be present in some types
of LLW materials in sufficient quantities to warrant
further investigations to better assess their
radiological and environmental impacts associated
with LLW disposal. It is recommended that further
studies be focused on: 1) providing an accurate
assessment of the total quantities of these
radionuclides in LLW from these sources, 2)
determine the leaching characteristics of these LLW
materials, 3) determine the migration behavior and
environmental pathways of these radionuclides upon
release from LLW disposal facilities, and 4) provide
performance assessment modelers with the |
Privacy Policy |
Site Disclaimer |