by Division of Regulatory Applications, Office of Nuclear Reactor Regulation [i.e. Office of Nuclear Regulatory Research], U.S. Nuclear Regulatory Commission, Supt. of Docs., U.S. G.P.O. [distributor in Washington, DC .
Written in English
|Statement||prepared by D.E. Robertson ... [et al.].|
|Contributions||Robertson, D. E., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Regulatory Applications., Pacific Northwest Laboratory.|
|The Physical Object|
|Pagination||xiii, 58, 4 p.|
|Number of Pages||58|
Material sent to land disposal facilities for radioactive waste must meet criteria in 10 CFR These include, for Class A waste, concentration limits of Ci/m 3 for 99 Tc and 10 Ci/m 3 for long-lived alpha-particle-emitting transuranic nuclides, and, for Class C waste, 10 times these limits. Class C waste has more rigorous requirements for. Introduction. During the decommissioning of a nuclear facility, significant quantities of a variety of materials need to be handled before further waste treatment procedures, e.g. reuse, decontamination, recycling, clearance (declassification or unconditional release of material) or disposal of radioactive or conventional by: 3. Radiological Characterization of Decommissioning Wastes from Korean MWe PWR: Activated Reactor Internals nuclide inventory calculation for the radioactive waste clarification during decommissioning stage was can be more important than the major constituents of the metals in terms of waste classification . Neutron Tr ansport. A relatively small amount of the waste (approximately 1% to 15% of the total waste volume, depending on reactor type and decommissioning alternative) is considered to be Class B waste. Some neutron-activated stainless-steel reactor vessel internals with high concentrations of /sup 59/Ni, /sup 63/Ni, and /sup 94/Nb are considered to be Class C.
The radiological characteristics for waste classification were assessed for neutron-activated decommissioning wastes from a CANDU reactor. The MCNP/ORIGEN2 code system was used for . Radionuclide characterization of reactor decommissioning waste and neutron-activated metals. A variety of neutron-activated metal specimens associated with spent fuel assembly hardware from. 2. D. E. Robertson, C. W. Thomas, N. L. Wynhoff, and D. L. uclide Characterization of Reactor Decommissioning Waste and Neutron Activated Metals. Low-Level Radioactive Waste Classification, Characterization, and Assessment: Waste Streams and Neutron-Activated Metals Pacific Northwest National Laboratory U.S. Nuclear Regulatory Commission Office of Nuclear Regulatory Research Washington, DC
Radionuclide characterization of reactor decommissioning waste and neutron-activated metals Technical Report Robertson, D E ; Thomas, C W ; Wynhoff, N L ; This study is providing the NRC and licensees with a more comprehensive data base for regulatory assessment of the radiological factors associated with reactor decommissioning and. Low-Level Radioactive Waste Classification, Characterization, and Assessment: Waste Streams and Neutron-Activated Metals (NUREG/CR, PNNL) On this page: Publication Information; Abstract; Download complete document. NUREG/CR (PDF - MB) Publication Information. Manuscript Completed: July Date Published: August Determination of Cs concentration and Cs/ Cs atomic ratio is of great importance in characterization of radioactive waste from decommissioning of nuclear facilities. In this work, an effective analytical method was developed for simultaneously determination of Cs and Cs in different types of waste samples (steel, zirconium alloy, reactor coolant, ion exchange filter paper. Radioactive materials in airborne and liquid effluent are released to the environment from NPPs, and the radioactivity in discharged materials is reported to the corresponding regulatory authority for each radionuclide (RN) or RNs groups [3,4,5].The discharged radioactive materials may have a radiological impact on the public and the environment (i.e., flora and fauna) in the vicinity of NPPs.