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Singapore : Springer Singapore Pte. Limited, 2021

1 online resource (353 pages)

ISBN 9789811603440 (electronic bk.)

ISBN 9789811603433

Print version: Pyeon, Cheol Ho Accelerator-Driven System at Kyoto University Critical Assembly Singapore : Springer Singapore Pte. Limited,c2021 ISBN 9789811603433

Intro -- Preface -- Contents -- Contributors -- 1 Introduction -- 1.1 Kyoto University Critical Assembly -- 1.1.1 KUCA Facility -- 1.1.2 Solid-Moderated and Solid-Reflected Cores -- 1.1.3 Light-Water-Moderated and Light-Water-Reflected Core -- 1.1.4 Pulsed-Neutron Generator -- 1.1.5 Fixed-Field Alternating Gradient Accelerator -- 1.2 Accelerator-Driven System -- 1.2.1 Overview of Research and Development -- 1.2.2 Feasibility Study at KUCA -- References -- 2 Subcriticality -- 2.1 Feynman-a and Rossi-a Analyses -- 2.1.1 Experimental Settings -- 2.1.2 Formulae for Data Analyses -- 2.1.3 Results and Discussion -- 2.2 Power Spectral Analyses -- 2.2.1 Experimental Settings -- 2.2.2 Formula for Power Spectral Analyses -- 2.2.3 Results and Discussion -- 2.3 Beam Trip and Restart Methods -- 2.3.1 Experimental Settings -- 2.3.2 Data Analyses Method -- 2.3.3 Results and Discussion -- 2.4 Conclusion -- References -- 3 Reactor Kinetics -- 3.1 a-Fitting Method -- 3.1.1 Experimental Settings -- 3.1.2 Numerical Simulations -- 3.1.3 Results and Discussion -- 3.2 Pulsed-Neutron Source Method -- 3.2.1 Experimental Settings -- 3.2.2 Results and Discussion -- 3.3 Inverse Kinetic Method -- 3.3.1 Theoretical Background -- 3.3.2 Experimental Settings -- 3.3.3 Transient Analyses -- 3.4 Conclusion -- References -- 4 Effective Delayed Neutron Fraction -- 4.1 Dependency of External Neutron Source -- 4.1.1 Experimental Settings -- 4.1.2 Numerical Simulations -- 4.1.3 k-Ratio Method -- 4.2 Measurement -- 4.2.1 Nelson Number Method -- 4.2.2 Experimental Settings -- 4.2.3 Results and Discussion -- 4.3 Evaluation of beff/N -- 4.3.1 Experimental Settings -- 4.3.2 Kinetics Parameters -- 4.3.3 Results and Discussion -- 4.4 Neutron Generation Time -- 4.4.1 Experimental Settings -- 4.4.2 Results and Discussion -- 4.5 Conclusion -- References -- 5 Neutron Spectrum.

5.1 Subcritical Multiplication Factor -- 5.1.1 Theoretical Background -- 5.1.2 Characteristics of the Target -- 5.1.3 Effects of Neutron Spectrum -- 5.2 Threshold Energy Reactions -- 5.2.1 Foil Activation Method -- 5.2.2 Activation Foils -- 5.3 Spectrum Index -- 5.3.1 Cd Ratio -- 5.3.2 In Ratio -- 5.4 Spallation Neutrons -- 5.4.1 Neutron Spectrum Analyses -- 5.4.2 Reaction Rates -- 5.5 Conclusion -- References -- 6 Nuclear Transmutation of Minor Actinide -- 6.1 Integral Experiments at Critical State -- 6.1.1 Critical Irradiation Experiments -- 6.1.2 Experimental Analyses -- 6.1.3 Discussion -- 6.2 ADS Irradiation at Subcritical State -- 6.2.1 Experimental Settings -- 6.2.2 Demonstration of Nuclear Transmutation -- 6.3 Conclusion -- References -- 7 Neutronics of Lead and Bismuth -- 7.1 Sample Reactivity Worth Experiments -- 7.1.1 Core Configuration -- 7.1.2 Experimental Settings -- 7.2 Monte Carlo Analyses -- 7.2.1 Evaluation Method -- 7.2.2 Lead Sample Reactivity Worth -- 7.2.3 Bismuth Sample Reactivity Worth -- 7.3 Sensitivity Coefficients -- 7.3.1 Theoretical Background -- 7.3.2 Lead Isotopes -- 7.3.3 Bismuth Isotope -- 7.4 Uncertainty Quantification -- 7.4.1 Theoretical Background -- 7.4.2 Lead Isotopes -- 7.4.3 Bismuth Isotope -- 7.5 Conclusion -- References -- 8 Sensitivity and Uncertainty of Criticality -- 8.1 Experimental Settings -- 8.1.1 Core Configuration -- 8.1.2 Reactivity Measurements -- 8.2 Criticality -- 8.2.1 Numerical Simulations -- 8.2.2 Sensitivity and Uncertainty -- 8.2.3 Results and Discussion -- 8.3 Benchmarks -- 8.3.1 Experimental Analyses -- 8.3.2 Uncertainty -- 8.4 Conclusion -- References -- Appendix A1: Experimental Benchmarks on ADS at Kyoto University Critical Assembly -- A1.1 Experimental Settings of ADS Benchmarks -- A1.1.1 Core Components -- A1.1.2 Atomic Number Density of Core Elements -- References.

Appendix A2: 235U-Fueled and Pb-Bi-Zoned ADS Core -- A2.1 Pb-Bi Target -- A2.1.1 Core Configurations -- A2.1.2 Results of Experiments -- A2.1.2.1 Reaction Rate Distribution -- A2.1.2.2 PNS and Feynman-a Methods -- A2.2 Subcriticality Measurements -- A2.2.1 Core Configurations -- A2.2.2 Results of Experiments -- A2.2.3 PNS and Feynman-a Methods -- A2.3 Reaction Rates -- A2.3.1 Core Configurations -- A2.3.2 Reaction Rate Distributions -- A2.3.3 Reaction Rates of Activation Foils -- References -- Appendix A3: 235U-Fueled and Pb-Zoned ADS Core -- A3.1 Core Configurations -- A3.1.1 ADS with 14 MeV Neutrons -- A3.1.2 ADS with 100 MeV Protons -- A3.2 Kinetics Parameters -- A3.2.1 ADS with 14 MeV Neutrons -- A3.2.1.1 Core Condition at Critical State -- A3.2.1.2 Case D1 (4560 HEU Plates) -- A3.2.1.3 Case D2 (4400 HEU Plates) -- A3.2.1.4 Case D3 (4320 HEU Plates) -- A3.2.1.5 Case D4 (4200 HEU Plates) -- A3.2.1.6 Case D5 (4080 HEU Plates) -- A3.2.1.7 Case D6 (3840 HEU Plates) -- A3.2.2 ADS with 100 MeV Protons -- A3.2.2.1 Core Condition at Critical State -- A3.2.2.2 Case F1 (4560 HEU Plates) -- A3.2.2.3 Case F2 (4440 HEU Plates) -- A3.2.2.4 Case F3 (4320 HEU Plates) -- A3.2.2.5 Case F4 (4200 HEU Plates) -- A3.2.2.6 Case F5 (4080 HEU Plates) -- A3.2.2.7 Case F6 (3960 HEU Plates) -- A3.2.2.8 Case F7 (3840 HEU Plates) -- A3.3 Reaction Rates -- A3.3.1 Core Configurations -- A3.3.2 Reaction Rate Distribution -- References -- Appendix A4: 235U-Fueled ADS Core in Medium-Fast Spectrum -- A4.1 Core Configurations -- A4.1.1 ADS with 14 MeV Neutrons -- A4.1.2 ADS with 100 MeV Protons -- A4.2 Results of Experiments -- A4.2.1 Criticality and Control Rod Worth -- A4.2.2 PNS and Feynman-a Methods -- A4.3 Kinetic Parameters -- A4.3.1 ADS with 14 MeV Neutrons -- A4.3.2 ADS with 100 MeV Protons -- A4.4 Reaction Rates -- A4.4.1 Core Configurations.

5.1 Subcritical Multiplication Factor -- 5.1.1 Theoretical Background -- 5.1.2 Characteristics of the Target -- 5.1.3 Effects of Neutron Spectrum -- 5.2 Threshold Energy Reactions -- 5.2.1 Foil Activation Method -- 5.2.2 Activation Foils -- 5.3 Spectrum Index -- 5.3.1 Cd Ratio -- 5.3.2 In Ratio -- 5.4 Spallation Neutrons -- 5.4.1 Neutron Spectrum Analyses -- 5.4.2 Reaction Rates -- 5.5 Conclusion -- References -- 6 Nuclear Transmutation of Minor Actinide -- 6.1 Integral Experiments at Critical State -- 6.1.1 Critical Irradiation Experiments -- 6.1.2 Experimental Analyses -- 6.1.3 Discussion -- 6.2 ADS Irradiation at Subcritical State -- 6.2.1 Experimental Settings -- 6.2.2 Demonstration of Nuclear Transmutation -- 6.3 Conclusion -- References -- 7 Neutronics of Lead and Bismuth -- 7.1 Sample Reactivity Worth Experiments -- 7.1.1 Core Configuration -- 7.1.2 Experimental Settings -- 7.2 Monte Carlo Analyses -- 7.2.1 Evaluation Method -- 7.2.2 Lead Sample Reactivity Worth -- 7.2.3 Bismuth Sample Reactivity Worth -- 7.3 Sensitivity Coefficients -- 7.3.1 Theoretical Background -- 7.3.2 Lead Isotopes -- 7.3.3 Bismuth Isotope -- 7.4 Uncertainty Quantification -- 7.4.1 Theoretical Background -- 7.4.2 Lead Isotopes -- 7.4.3 Bismuth Isotope -- 7.5 Conclusion -- References -- 8 Sensitivity and Uncertainty of Criticality -- 8.1 Experimental Settings -- 8.1.1 Core Configuration -- 8.1.2 Reactivity Measurements -- 8.2 Criticality -- 8.2.1 Numerical Simulations -- 8.2.2 Sensitivity and Uncertainty -- 8.2.3 Results and Discussion -- 8.3 Benchmarks -- 8.3.1 Experimental Analyses -- 8.3.2 Uncertainty -- 8.4 Conclusion -- References -- Appendix A1: Experimental Benchmarks on ADS at Kyoto University Critical Assembly -- A1.1 Experimental Settings of ADS Benchmarks -- A1.1.1 Core Components -- A1.1.2 Atomic Number Density of Core Elements -- References.

A4.4.2 Reaction Rate Distributions -- A4.4.3 Reaction Rates of Activation Foils -- References -- Appendix A5: 232Th-Fueled ADS Core -- A5.1 Core Configurations -- A5.2 Results of Experiments -- A5.2.1 Reaction Rate Distributions -- A5.2.2 PNS and Feynman-a Methods -- References.

Appendix A2: 235U-Fueled and Pb-Bi-Zoned ADS Core -- A2.1 Pb-Bi Target -- A2.1.1 Core Configurations -- A2.1.2 Results of Experiments -- A2.1.2.1 Reaction Rate Distribution -- A2.1.2.2 PNS and Feynman-a Methods -- A2.2 Subcriticality Measurements -- A2.2.1 Core Configurations -- A2.2.2 Results of Experiments -- A2.2.3 PNS and Feynman-a Methods -- A2.3 Reaction Rates -- A2.3.1 Core Configurations -- A2.3.2 Reaction Rate Distributions -- A2.3.3 Reaction Rates of Activation Foils -- References -- Appendix A3: 235U-Fueled and Pb-Zoned ADS Core -- A3.1 Core Configurations -- A3.1.1 ADS with 14 MeV Neutrons -- A3.1.2 ADS with 100 MeV Protons -- A3.2 Kinetics Parameters -- A3.2.1 ADS with 14 MeV Neutrons -- A3.2.1.1 Core Condition at Critical State -- A3.2.1.2 Case D1 (4560 HEU Plates) -- A3.2.1.3 Case D2 (4400 HEU Plates) -- A3.2.1.4 Case D3 (4320 HEU Plates) -- A3.2.1.5 Case D4 (4200 HEU Plates) -- A3.2.1.6 Case D5 (4080 HEU Plates) -- A3.2.1.7 Case D6 (3840 HEU Plates) -- A3.2.2 ADS with 100 MeV Protons -- A3.2.2.1 Core Condition at Critical State -- A3.2.2.2 Case F1 (4560 HEU Plates) -- A3.2.2.3 Case F2 (4440 HEU Plates) -- A3.2.2.4 Case F3 (4320 HEU Plates) -- A3.2.2.5 Case F4 (4200 HEU Plates) -- A3.2.2.6 Case F5 (4080 HEU Plates) -- A3.2.2.7 Case F6 (3960 HEU Plates) -- A3.2.2.8 Case F7 (3840 HEU Plates) -- A3.3 Reaction Rates -- A3.3.1 Core Configurations -- A3.3.2 Reaction Rate Distribution -- References -- Appendix A4: 235U-Fueled ADS Core in Medium-Fast Spectrum -- A4.1 Core Configurations -- A4.1.1 ADS with 14 MeV Neutrons -- A4.1.2 ADS with 100 MeV Protons -- A4.2 Results of Experiments -- A4.2.1 Criticality and Control Rod Worth -- A4.2.2 PNS and Feynman-a Methods -- A4.3 Kinetic Parameters -- A4.3.1 ADS with 14 MeV Neutrons -- A4.3.2 ADS with 100 MeV Protons -- A4.4 Reaction Rates -- A4.4.1 Core Configurations.

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