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http://dx.doi.org/10.7733/jnfcwt.2020.18.4.517

Statistical Methodologies for Scaling Factor Implementation: Part 1. Overview of Current Scaling Factor Method for Radioactive Waste Characterization  

Kim, Tae-Hyeong (Korea Atomic Energy Research Institute)
Park, Junghwan (Korea Atomic Energy Research Institute)
Lee, Jeongmook (Korea Atomic Energy Research Institute)
Kim, Junhyuck (Korea Atomic Energy Research Institute)
Kim, Jong-Yun (Korea Atomic Energy Research Institute)
Lim, Sang Ho (Korea Atomic Energy Research Institute)
Publication Information
Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) / v.18, no.4, 2020 , pp. 517-536 More about this Journal
Abstract
The radionuclide inventory in radioactive waste from nuclear power plants should be determined to secure the safety of final repositories. As an alternative to time-consuming, labor-intensive, and destructive radiochemical analysis, the indirect scaling factor (SF) method has been used to determine the concentrations of difficult-to-measure radionuclides. Despite its long history, the original SF methodology remains almost unchanged and now needs to be improved for advanced SF implementation. Intense public attention and interest have been strongly directed to the reliability of the procedures and data regarding repository safety since the first operation of the low- and intermediate-level radioactive waste disposal facility in Gyeongju, Korea. In this review, statistical methodologies for SF implementation are described and evaluated to achieve reasonable and advanced decision-making. The first part of this review begins with an overview of the current status of the scaling factor method and global experiences, including some specific statistical issues associated with SF implementation. In addition, this review aims to extend the applicability of SF to the characterization of large quantities of waste from the decommissioning of nuclear facilities.
Keywords
Scaling factor; Radioactive waste; Waste characterization; Decision criteria; Statistical methodology;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 International Atomic Energy Agency. Classification of Radioactive Waste, IAEA Safety Standards Series No. GSG-1, International Atomic Energy Agency, Vienna (2006).
2 Korea Hydro & Nuclear Power Co., Standard Operating Procedure: Disposal of Low- and Intermediate-Level Radioactive Waste Packages (in Korean), 3rd ed., No. 8610 (2016).
3 J.E. Cline, J.R. Noyce, L.J. Coe, and K.W. Wright. Assay of Long-Lived Radionuclides in Low-Level Wastes from Power Reactors, United States Nuclear Regulatory Commission Report, NUREG/CR-4101 (1985).
4 International Atomic Energy Agency. Characterization of Radioactive Waste Forms and Packages, International Atomic Energy Agency Report, Technical Reports Series No. 383 (1997).
5 International Atomic Energy Agency. Radiological Characterization of Shut Down Nuclear Reactors for Decommissioning Purposes, International Atomic Energy Agency Report, Technical Reports Series No. 389 (1998).
6 International Atomic Energy Agency. Derivation of Activity Limits for the Disposal of Radioactive Waste in Near Surface Disposal Facilities, International Atomic Energy Agency Report, IAEA-TECDOC-1380 (2003).
7 S.W. Hong, M.S. Kim, K.I. Jung, and J.B. Park, "Determination of Radionuclide Concentration Limit for Low and Intermediate-Level Radioactive Waste Disposal Facility I: Application of IAEA Methodology for Underground Silo Type Disposal Facility", J. Nucl. Fuel Cycle Waste Technol., 15(3), 257-264 (2017).   DOI
8 S.W. Hong, M.S. Kim, K.I. Jung, and J.B. Park, "Determination of Radionuclide Concentration Limit for Low and Intermediate-Level Radioactive Waste Disposal Facility II: Application of Optimization Methodology for Underground Silo Type Disposal Facility", J. Nucl. Fuel Cycle Waste Technol., 15(3), 265-279 (2017).   DOI
9 J.Y. Song, G.H. Song, J.H. Park, and S.W. Ji, "Review Study of Radioactive Waste Classification and Waste Acceptance Criteria for Disposal of VLLW from Decommissioning of Nuclear Facilities", J. Radiat. Ind., 12(3), 239-247 (2018).
10 Nuclear Safety and Security Commission, Standards for Radiation Protection, etc, Notice No. 2019-10, Nuclear Safety and Security Commission, Seoul (2019).
11 International Atomic Energy Agency, Classification of Radioactive Waste: A Safety Guide, IAEA Safety Series No. 111-G-1.1, International Atomic Energy Agency, Vienna (1994).
12 International Atomic Energy Agency, Application of the Concepts of Exclusion, Exemption and Clearance, Safety Guide No. RS-G-1.7, International Atomic Energy Agency, Vienna (2004).
13 Nuclear Safety and Security Commission, Regulation on the Criteria for the Classification and Clearance of Radioactive Wastes, Notice No. 2017-65, Nuclear Safety and Security Commission, Seoul (2017).
14 International Atomic Energy Agency. Development of Specifications for Radioactive Waste Packages, International Atomic Energy Agency Report, IAEA-TECDOC-1515 (2006).
15 International Atomic Energy Agency. Review of the Factors Affecting the Selection and Implementation of Waste Management Technologies, International Atomic Energy Agency Report, IAEA-TECDOC-1096 (1999).
16 International Atomic Energy Agency. Management of Problematic Waste and Material Generated during the Decommissioning of Nuclear Facilities, International Atomic Energy Agency Report, Technical Reports Series No. 441 (2006).
17 International Atomic Energy Agency. Innovative Waste Treatment and Conditioning Technologies at Nuclear Power Plants, International Atomic Energy Agency Report, IAEA-TECDOC-1504 (2006).
18 Nuclear Safety and Security Commission, General Acceptance Criteria for Low- and Intermediate-Level Radioactive Waste, Notice No. 2020-11, Nuclear Safety and Security Commission, Seoul (2020).
19 International Organization for Standardization, Nuclear Energy - Nuclear Fuel Technology - Scaling Factor Method to Determine the Radioactivity of Low-and Intermediate-Level Radioactive Waste Packages Generated at Nuclear Power Plants, ISO 21238, International Organization for Standardization, Geneva (2007).
20 International Atomic Energy Agency. Determination and Use of Scaling Factors for Waste Characterization in Nuclear Power Plants, IAEA Nuclear Energy Series, NW-T-1.18 (2009).
21 M. Matsui, A. Fujita, and M. Kashiwagi, "Radioactivity Determination and Measurement for Shallow Land Disposal of Low-Level Radioactive Wastes", Proc. of the 12th Sino-Japanese Seminar on Nuclear Safety, December 1-2, Tokyo (1997).
22 International Atomic Energy Agency. Managing Low Radioactivity Material from the Decommissioning of Nuclear Facilities, International Atomic Energy Agency Report, Technical Reports Series No. 462 (2008).
23 D.W. James, "Impacts of Operational Changes on LLW Scaling Factors", Proc. of Waste Management Symposia (WM2004), February 29-March 4, Tucson (2004).
24 B. Zaffora, S. Demeyer, M. Magistris, E. Ronchetti, G. Saporta, and C. Theis, "A Bayesian Framework to Update Scaling Factors for Radioactive Waste Characterization", Appl. Radiat. Isot., 159 (2020).
25 S.C. Lee, K.H. Hwang, S.H. Kang, and K.J. Lee, "A Study on the Improvement of Scaling Factor Determination using Artificial Neural Network", J. Korean Radioact. Waste Soc., 2(1), 35-40 (2004).
26 International Atomic Energy Agency. Strategy and Methodology for Radioactive Waste Characterization, International Atomic Energy Agency Report, IAEA-TECODC-1537 (2007).
27 H.S. Jens, "Scaling Factors in Clearance Measurements on Decommissioning Waste at Danish Decommissioning", Proc. of NKS-R Decommissioning Seminar 2013, November 6-7, Halden (2013).
28 W. Wurtinger, "Determination of Activity of NPP wastes on the Basis of Key Nuclides", Proc. of the 2nd International Seminar Radioactive Waste Products, Julich (1990).
29 W.T. Best and A.D. Miller. Radionuclide Correlations in Low-Level Radwaste, Electric Power Research Institute Report, EPRI-NP-4037 (1985).
30 W.T. Best and A.D. Miller. Updated Scaling Factors in Low-Level radwaste, Electric Power Research Institute Report, EPRI-NP-5077 (1987).
31 U. Oppermann and W. Muller, "Characterization of Nuclide Inventories in Waste Streams from Nuclear Power Plants", Proc. of the 4th International Conference on Nuclear Waste Management and Environmental Remediation (ICEM1993), September 5-11, Prague (1993).
32 A. Husain and J.P. Krasznai, "Characterization of Ontario Hydro's Low and Intermediate Level Reactor Waste - Development of Scaling Factors for DifficultTo-Measure Nuclides", Proc. of 5th International Conference on Radioactive Waste Management and Environmental Remediation (ICEM1995), September 3-9, Berlin (1995).
33 S. Niese and B. Gleisberg, "Determination of Radioisotopes of Ce, Eu, Pu, Am and Cm in Low-Level-Wastes from Power Reactors", J. Radioanal. Nucl. Chem., 200(1), 31-41 (1995).   DOI
34 S. Niese and B. Gleisberg, "Determination of Radioisotopes of Ce, Eu, Pu, Am and Cm in Low-Level Wastes from Power Reactors using Low-Level Measuring Techniques", Appl. Radiat. Isot., 47(9/10), 1113-1114 (1996).   DOI
35 T. Kekki and A. Tiitta. Evaluation of the Radioactive Waste Characterisation at the Olkiluoto Nuclear Power Plant, Radiation and Nuclear Safety Authority Report, STUK-YTO-TR162 (2000).
36 K. Hwang, S. Lee, S. Kang, K.J. Lee, C. Jeong, S. Ahn, T. Kim, K. Kim, Y. Herr, and M. Song, "Development of Radionuclide Inventory Declaration Methods using Scaling Factors for the Korean NPPs - Scope and Activity Determination Method-", J. Korean Radioact. Waste Soc., 2(1), 77-85 (2004).
37 IAEA. Radioactive Particles in the Environment: Sources, Particle Characterization and Analytical Techniques, International Atomic Energy Agency Report, IAEA-TECDOC-1663 (2011).
38 B. Zaffora, M. Magistris, J.P. Chevalier, C. Luccioni, G. Saporta, and L. Ulrici, "A New Approach to Characterize Very-Low-Level Radioactive Waste Produced at Hadron Accelerators", Appl. Radiat. Isot., 122, 141-147 (2017).   DOI
39 M. Kashiwagi, W. Muller, and B. Lantes, "Considerations on the Activity Concentration Determination Method for Low-Level Waste Packages and Nuclide Data Comparison between Different Countries", Proc. of International Conference on the Safety of Radioactive Waste Management, March 13-17, Cordoba (2000).
40 H. Masui, M. Kashiwagi, and H. Ozaki, "Low-Level Radioactive Waste Radioactivity Evaluation Practice in Japan and Suggestion for Rationalization", Proc. of International Workshop on Determination and Declaration of Nuclide Specific Activity Inventories in Radioactive Wastes, September 26-28, Cologne (2001).
41 H. Fujihara, H. Masui, M.M. Kashiwagi, M. Motoyama, and H. Ozaki, "Rationalization of Radioactivity Concentration Determination Method for Low-Level Radioactive Waste Generated at Japanese Nuclear Power Plants", Proc. of 8th International Conference on Radioactive Waste Management and Environmental Remediation (ICEM2001), September 30-October 4, Bruges (2001).
42 F.E. Grubbs, "Procedures for Detecting Outlying Observations in Samples", Technometrics, 11(1), 1-21 (1969).   DOI
43 B. Zaffora, M. Magistris, G. Saporta, and F.P. La Torre, "Statistical Sampling Applied to the Radiological Characterization of Historical Waste", EPJ Nucl. Sci. Technol., 2(34), 1-11 (2016).   DOI
44 A.G. Asuero, A. Sayago, and A.G. Gonzalez, "The Correlation Coefficient: An Overview", Crit. Rev. Anal. Chem., 36(1), 41-59 (2006).   DOI
45 International Organization for Standardization, Accuracy (trueness and precision) of Measurement Methods and Results. Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method, ISO 5725-2:1994 International Organization for Standardization, Geneva (1994).
46 J.H. Livesey, "Kurtosis Provides a Good Omnibus Test for Outliers in Small Samples", Clin. Biochem., 40(13-14), 1032-1036 (2007).   DOI
47 K. Pearson, "Note on Regression and Inheritance in the Case of Two Parents", Proc. R. Soc. London, 58 (347-352), 240-242 (1895).   DOI
48 M. Kashiwagi, H. Masui, Y. Denda, D. James, W. Muller, B. Lantes, M. Garamszeghy, J.L. Leganes, and H. Maxeine, "ISO Standardization of the Scaling Factor Method for Low- and Intermediate-Level Radioactive Wastes Generated at Nuclear Power Plants", Proc. of the 11th International Conference on Environmental Remediation and Radioactive Waste Management (ICEM2007), September 2-6, Bruges (2007).
49 F.W. Wellmer, The Use of the Lognormal Distribution. In Statistical Evaluations in Exploration for Mineral Deposits, Springer, Berlin (1998).
50 J.E. Cline, K.L. Wright, and J.W. Hollcroft. Activity Levels of Transuranic Nuclides in Low-Level Solid Waste from US Power Reactors. Final report, Electric Power Research Institute Report, EPRI-NP-1494 (1980).
51 United States Nuclear Regulatory Commission, Code of Federal Regulation Title 10 Part 61, Low Level Radioactive Waste Scaling Factors, United States Nuclear Regulatory Commission, Washington DC (1986).
52 T. Kim, K. Kang, and J. Ha, "Determination and Verification of the Scaling Factor for the Radionuclide Inventory of the Radioactive Waste from Nuclear Power Plants", J. Nucl. Sci. Technol., 45, 756-757 (2008).   DOI
53 United States Nuclear Regulatory Commission, Low-Level Waste Licensing Branch Technical Position on Radioactive Waste Classification, United States Nuclear Regulatory Commission, Washington DC (1983).
54 J.E. Cline. Utility Use of Constant Scaling Factors, TR-109448 (2006).
55 B. Cox and P. Saunders. Development of Generic Scaling Factors for Technetium-99 and Iodine 129 in Low and Intermediate Level Waste, Electric Power Research Institute Report, Technical Report 3002005564 (2015).
56 H. Masui, T. Sakai, T. Funahashi, A. Segi, and M. Kashiwagi, "Radioactive Concentration Determining Method for Dry Active Waste Generated at Japanese Nuclear Power Plants", Proc. of the 7th International Conference on Radioactive Waste Management and Environmental Remediation (ICEM1999), September 26-30, Nagoya (1999).
57 T. Kim, K. Kang, S.C. Lee, and K.J. Lee, "Development of Operation Program of SF for Intermediateand Low-Level Radioactive Waste (in Korean)", Proc. of the 2006 Korean Radioactive Waste Society Conference, June 15-16, Seoul (2006).
58 K.Y. Jee, H.J. Ahn, S.C. Sohn, S.H. Han, and K.S. Choi, "Derivation of the Korean Radwaste Scaling Factor", Proc. of the 11th International Conference on Environmental Remediation and Radioactive Waste Management (ICEM2007), September 2-6, Bruges (2007).
59 L. Festinger, and D. Katz, Research Methods in the Behavioral Sciences, Dryden Press, Orlando (1953).
60 B. Williams, A Sampler on Sampling, John Wiley & Sons, New York (1978).
61 J.P. Verma and A.S.G. Abdel Salam, Testing Statistical Assumptions in Research, John Wiley & Sons (2019).
62 T. Kim, "Application of SF Method for Legacy Waste (in Korean)", Proc. of the 12th Nuclear Safety & Security Information Conference, April 5-6, Daejeon (2007).