Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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EXPERIMENTAL ANALYSES OF SPALLATION NEUTRONS GENERATED BY 100 MEV PROTONS AT THE KYOTO UNIVERSITY CRITICAL ASSEMBLY

  • Pyeon, Cheol Ho (Nuclear Engineering Science Division, Research Reactor Institute, Kyoto University) ;
  • Azuma, Tetsushi (Department of Fundamental Energy Science, Graduate School of Energy Science, Kyoto University) ;
  • Takemoto, Yuki (Department of Fundamental Energy Science, Graduate School of Energy Science, Kyoto University) ;
  • Yagi, Takahiro (Nuclear Engineering Science Division, Research Reactor Institute, Kyoto University) ;
  • Misawa, Tsuyoshi (Nuclear Engineering Science Division, Research Reactor Institute, Kyoto University)
  • Received : 2012.01.13
  • Accepted : 2012.04.30
  • Published : 2013.02.25
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Abstract

Neutron spectrum analyses of spallation neutrons are conducted in the accelerator-driven system (ADS) facility at the Kyoto University Critical Assembly (KUCA). High-energy protons (100 MeV) obtained from the fixed field alternating gradient accelerator are injected onto a tungsten target, whereby the spallation neutrons are generated. For neutronic characteristics of spallation neutrons, the reaction rates and the continuous energy distribution of spallation neutrons are measured by the foil activation method and by an organic liquid scintillator, respectively. Numerical calculations are executed by MCNPX with JENDL/HE-2007 and ENDF/B-VI libraries to evaluate the reaction rates of activation foils (bismuth and indium) set at the target and the continuous energy distribution of spallation neutrons set in front of the target. For the reaction rates by the foil activation method, the C/E values between the experiments and the calculations are found around a relative difference of 10%, except for some reactions. For continuous energy distribution by the organic liquid scintillator, the spallation neutrons are observed up to 45 MeV. From these results, the neutron spectrum information on the spallation neutrons generated at the target are attained successfully in injecting 100 MeV protons onto the tungsten target.

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References

  1. C. H. Pyeon, Y. Hirano, T. Misawa et al., "Preliminary Experiments on Accelerator-Driven Subcritical Reactor with Pulsed Neutron Generator in Kyoto University Critical Assembly," J. Nucl. Sci. Technol., 44, 1368-1378 (2007). https://doi.org/10.1080/18811248.2007.9711384
  2. C. H. Pyeon, M. Hervault, T. Misawa et al., "Static and Kinetic Experiments on Accelerator-Driven System in Kyoto University Critical Assembly," J. Nucl. Sci. Technol., 45, 1171-1182 (2008). https://doi.org/10.1080/18811248.2008.9711906
  3. C. H. Pyeon, H. Shiga, T. Misawa et al., "Reaction Rate Analyses for an Accelerator-Driven System with 14 MeV Neutrons in the Kyoto University Critical Assembly," J. Nucl. Sci. Technol., 46, 965-972 (2009). https://doi.org/10.1080/18811248.2009.9711605
  4. H. Taninaka, K. Hashimoto, C. H. Pyeon et al., "Determination of Lambda-Mode Eigenvalue Separation of a Thermal Accelerator-Driven System from Pulsed Neutron Experiment," J. Nucl. Sci. Technol., 47, 376-383 (2010). https://doi.org/10.1080/18811248.2010.9711968
  5. H. Taninaka, K. Hashimoto, C. H. Pyeon et al., "Determination of Subcritical Reactivity of a Thermal Accelerator- Driven System from Beam Trip and Restart Experiment," J. Nucl. Sci. Technol., 48, 873-879 (2011). https://doi.org/10.1080/18811248.2011.9711772
  6. H. Taninaka, A. Miyoshi, K. Hashimoto et al., "Feynmana Analysis for a Thermal Subcritical Reactor System Driven by an Unstable 14MeV-Neutron Source," J. Nucl. Sci. Technol., 48, 1272-1280 (2011). https://doi.org/10.1080/18811248.2011.9711816
  7. C. H. Pyeon, Y. Takemoto, T. Yagi et al., "Accuracy of Reaction Rates in the Accelerator-Driven System with 14 MeV Neutrons at the Kyoto University Critical Assembly," Ann. Nucl. Energy, 40, 229-236 (2012). https://doi.org/10.1016/j.anucene.2011.10.011
  8. C. H. Pyeon, T. Misawa, J. Y. Lim et al., "First Injection of Spallation Neutrons Generated by High-Energy Protons into the Kyoto University Critical Assembly," J. Nucl. Sci. Technol., 46, 1091-1093 (2009). https://doi.org/10.1080/18811248.2009.9711620
  9. C. H. Pyeon, J. Y. Lim, Y. Takemoto et al., "Preliminary Study on the Thorium-Loaded Accelerator-Driven System with 100 MeV Protons at the Kyoto University Critical Assembly," Ann. Nucl. Energy, 38, 2298-2302 (2011). https://doi.org/10.1016/j.anucene.2011.06.024
  10. M. Tanigaki, K. Takamiya, H. Yoshino et al., "Control System for the FFAG Complex at KURRI," Nucl. Instrum. Methods A, 612, 354-359 (2010). https://doi.org/10.1016/j.nima.2009.11.024
  11. T. Planche, E. Yamakawa, T. Uesugi et al., "Scaling FFAG Rings for Rapid Acceleration of Muon Beams," Nucl. Instrum. Methods A, 622, 21-27 (2010). https://doi.org/10.1016/j.nima.2010.06.242
  12. T. Planche, J.-B. Lagrange, E. Yamakawa et al., "Harmonic Number Jump Acceleration of Muon Beams in Zero- Chromatic FFAG Rings," Nucl. Instrum. Methods A, 632, 7-17 (2011). https://doi.org/10.1016/j.nima.2010.12.190
  13. C. Rubbia, "A High Gain Energy Amplifier Operated with Fast Neutrons," AIP Conf. Proc., 346, 44-53 (1995); see also Proc. Int. Conf. on Accelerator-Driven Transmutation Technologies and Application, Las Vegas, July 25-29, (1994).
  14. R. Soule, W. Assal, P. Chaussonnet et al., "Neutronic Studies in Support of Accelerator-Driven Systems: The MUSE Experiments in the MASURCA Facility," Nucl. Sci. Eng., 148, 124-152 (2004). https://doi.org/10.13182/NSE01-13C
  15. M. Plaschy, C. Destouches, G. Rimpault et al., "Investigation of ADS-Type Heterogeneities in the MUSE4 Critical Configuration," J. Nucl. Sci. Technol., 42, 779-787 (2005). https://doi.org/10.1080/18811248.2004.9726447
  16. J. F. Lebrat, G. Aliberti, A. D'Angelo et al., "Global Results from Deterministic and Stochastic Analysis of the MUSE- 4 Experiments on the Neutronics of the Accelerator-Driven Systems," Nucl. Sci. Eng., 158, 49-67 (2008). https://doi.org/10.13182/NSE05-100
  17. C. M. Persson, A. Fokau, I. Serafimovich et al., "Pulsed Neutron Source Measurements in the Subcritical ADS Experiment YALINA-Booster," Ann. Nucl. Energy, 35, 2357-2364 (2008). https://doi.org/10.1016/j.anucene.2008.07.011
  18. Y. Gohar, G. Aliberti, I. Bolshinsky et al., "YALINABooster Subcritical Assembly Conversion," Trans. Am. Nucl. Soc., 101, 39 (2009).
  19. M. Tesinsky, C. Berglöf, T. Bäck et al., "Comparison of Calculated and Measured Reaction Rates Obtained through Foil Activation in the Subcritical Dual Spectrum Facility YALINA-Booster," Ann. Nucl. Energy, 38, 1412-1417 (2011). https://doi.org/10.1016/j.anucene.2011.01.028
  20. H. H. Xia, "The Progress of Researches on ADS in China," ICFA Beam Dynamics Newsletter, 49, 72-80 (2009).
  21. W. Uyttenhove, P. Baeten, G. Van den Eynde et al., "The Neutronic Design of a Critical Lead Reflected Zero-Power Reference Core for On-Line Subcriticality Measurements in Accelerator-Driven Systems," Ann. Nucl. Energy, 38, 1519-1526 (2011). https://doi.org/10.1016/j.anucene.2011.03.012
  22. C. H. Pyeon, H. Shiga, K. Abe et al., "Reaction Rate Analysis of Nuclear Spallation Reactions Generated by 150, 190 and 235 MeV Protons," J. Nucl. Sci. Technol., 47, 1090-1095 (2010). https://doi.org/10.1080/18811248.2010.9711674
  23. International Specialty Products, http://www.gafchromic.com/
  24. J. S. Hendricks, G. W. McKinney, L. S. Waters et al., "MCNPX User's Manual, Version 2.5.0.," LA-UR-05-2675, Los Alamos National Laboratory (2005).
  25. T. Fukahori, "JENDL High-Energy File," J. Nucl. Sci. Technol., suppl., 2, 25-30 (2002).
  26. H. Takada, K. Kosako and T. Fukahori, "Validation of JENDL High-Energy File through Analyses of Spallation Experiments at Incident Proton Energies from 0.5 to 2.83 GeV," J. Nucl. Sci. Technol., 46, 589-598 (2009). https://doi.org/10.1080/18811248.2007.9711566
  27. V. V. Verbinski, W. R. Burrus, T. A. Love et al., "Calibration of an Organic Scintillator for Neutron Spectrometry," Nucl. Instrum. Methods, 65, 8-25 (1968). https://doi.org/10.1016/0029-554X(68)90003-7
  28. G. Dietze and H. Klien, "Gamma-Calibration of NE-213 Scintillator Counters," Nucl. Instrum. Methods, 193, 549- 556 (1982). https://doi.org/10.1016/0029-554X(82)90249-X
  29. P. F. Rose, "ENDF-201, ENDF/B-VI Summary Documentation," BNL-NCS-17541, 4th Edition (1991).
  30. D. Satoh, T. Sato, N. Shingyo et al., "SCINFUL-QMD: Monte Carlo Based Computer Code to Calculate Response Function and Detection Efficiency of a Liquid Organic Scintillator for Neutron Energies up to 3 GeV," JAEAData/Code, 2006-23 (2006).
  31. M. Reginatto, B. Wiegel, A. Zimbal et al., "The UMGCode Package, Ver. 3.3," NEA-1665/03, (2004). OECD/NEA
  32. V. Mclane, ed., "ENDF-102: Data Formats and Procedures for the Evaluated Nuclear Data File ENDF-6," BNL-NCS-44945-01/04-Rev., (2001).

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