8
C. H. Pyeon
D-T accelerator had been carried out using the A-core (Fig. 1.2) and the pulsedneutron generator (Fig. 1.4) of KUCA. Then, neutron characteristics of statics and
kinetics parameters in reactor physics were experimentally investigated through the
development of measurement methodologies and numerically examined through the
confirmation of calculation precision by the Monte Carlo calculations. After the
first injection of 100 MeV protons, the next campaign of ADS experiments was
devoted to basic research (feasibility study) on ADS coupling with the FFAG accelerator (a tungsten or lead-bismuth: Pb–Bi target) and the A-core, by varying external
neutron source (14 MeV neutrons or 100 MeV protons), neutron spectrum of reactor
core combined with nuclear fuel (uranium-235, thourim-232, and natural uranium),
moderators (polyethylene and graphite) and reflectors (polyethylene, graphite, beryllium, aluminum, iron, lead, and bismuth), and subcriticality. Significantly, in 2019,
the world’s first nuclear transmutation of MA by ADS [66] was accomplished at the
condition that the spallation neutrons were supplied to a subcritical core through the
injection of 100 MeV protons onto a Pb–Bi target, demonstrating fission and capture
reactions of neptunium-237 and americium-241.
All experimental data of ADS were compiled as “ADS experimental benchmarks at KUCA,” publishing the KURNS technical reports [81–85], and employed
as “Coordinated (Collaborative) Research Projects (CRP) of Accelerator-Driven
System and Low-Enriched Uranium Cores in ADS” organized by the International
Atomic Energy Agency (IAEA). Through the CRP programs of ADS by IAEA
ranging between 2007 and 2018, experimental data of ADS at KUCA were shared
with all IAEA state members and used for conducting the validation and verification
of nuclear calculation codes and major nuclear data libraries.
References
1. Misawa T, Unesaki H, Pyeon CH (2000) Nuclear reactor physics experiments. Kyoto University
Press, Kyoto, Japan
2. Planche T, Lagrange JB, Yamakawa E et al (2011) Harmonic number jump acceleration of
muon beams in zero-chromatic FFAG rings. Nucl Instrum Methods A 632:7
3. Lagrange JB, Planche T, Yamakawa E et al (2013) Straight scaling FFAG beam line. Nucl
Instrum Methods A 691:55
4. Yamakawa E, Uesugi T, Lagrange JB et al (2013) Serpentine acceleration in zero-chromatic
FFAG accelerators. Nucl Instrum Methods A 716:46
5. Rubbia C (1995) A high gain energy amplifier operated with fast neutrons. AIP Conf Proc
346:44
6. Tsujimoto K, Sasa T, Nishihara K et al (2004) Neutronics design for lead-bismuth cooled
accelerator-driven system for transmutation of minor actinide. J Nucl Sci Technol 41:21
7. Abderrahim HA, D’hondt P (2007) MYRRAHA, a European experimental ADS for R&D
applications status at mid-2005 and prospective towards implementation. J Nucl Sci Technol
44:491
8. Soule R, Assal W, Chaussonnet P et al (2004) Neutronic studies in support of accelerator-driven
systems: The MUSE experiments in the MASURCA facility. Nucl Sci Eng 148:124
9. Plaschy M, Destouches C, Rimpault G et al (2005) Investigation of ADS-type heterogeneities
in the MUSE4 critical configuration. J Nucl Sci Technol 42:779
C. H. Pyeon
D-T accelerator had been carried out using the A-core (Fig. 1.2) and the pulsedneutron generator (Fig. 1.4) of KUCA. Then, neutron characteristics of statics and
kinetics parameters in reactor physics were experimentally investigated through the
development of measurement methodologies and numerically examined through the
confirmation of calculation precision by the Monte Carlo calculations. After the
first injection of 100 MeV protons, the next campaign of ADS experiments was
devoted to basic research (feasibility study) on ADS coupling with the FFAG accelerator (a tungsten or lead-bismuth: Pb–Bi target) and the A-core, by varying external
neutron source (14 MeV neutrons or 100 MeV protons), neutron spectrum of reactor
core combined with nuclear fuel (uranium-235, thourim-232, and natural uranium),
moderators (polyethylene and graphite) and reflectors (polyethylene, graphite, beryllium, aluminum, iron, lead, and bismuth), and subcriticality. Significantly, in 2019,
the world’s first nuclear transmutation of MA by ADS [66] was accomplished at the
condition that the spallation neutrons were supplied to a subcritical core through the
injection of 100 MeV protons onto a Pb–Bi target, demonstrating fission and capture
reactions of neptunium-237 and americium-241.
All experimental data of ADS were compiled as “ADS experimental benchmarks at KUCA,” publishing the KURNS technical reports [81–85], and employed
as “Coordinated (Collaborative) Research Projects (CRP) of Accelerator-Driven
System and Low-Enriched Uranium Cores in ADS” organized by the International
Atomic Energy Agency (IAEA). Through the CRP programs of ADS by IAEA
ranging between 2007 and 2018, experimental data of ADS at KUCA were shared
with all IAEA state members and used for conducting the validation and verification
of nuclear calculation codes and major nuclear data libraries.
References
1. Misawa T, Unesaki H, Pyeon CH (2000) Nuclear reactor physics experiments. Kyoto University
Press, Kyoto, Japan
2. Planche T, Lagrange JB, Yamakawa E et al (2011) Harmonic number jump acceleration of
muon beams in zero-chromatic FFAG rings. Nucl Instrum Methods A 632:7
3. Lagrange JB, Planche T, Yamakawa E et al (2013) Straight scaling FFAG beam line. Nucl
Instrum Methods A 691:55
4. Yamakawa E, Uesugi T, Lagrange JB et al (2013) Serpentine acceleration in zero-chromatic
FFAG accelerators. Nucl Instrum Methods A 716:46
5. Rubbia C (1995) A high gain energy amplifier operated with fast neutrons. AIP Conf Proc
346:44
6. Tsujimoto K, Sasa T, Nishihara K et al (2004) Neutronics design for lead-bismuth cooled
accelerator-driven system for transmutation of minor actinide. J Nucl Sci Technol 41:21
7. Abderrahim HA, D’hondt P (2007) MYRRAHA, a European experimental ADS for R&D
applications status at mid-2005 and prospective towards implementation. J Nucl Sci Technol
44:491
8. Soule R, Assal W, Chaussonnet P et al (2004) Neutronic studies in support of accelerator-driven
systems: The MUSE experiments in the MASURCA facility. Nucl Sci Eng 148:124
9. Plaschy M, Destouches C, Rimpault G et al (2005) Investigation of ADS-type heterogeneities
in the MUSE4 critical configuration. J Nucl Sci Technol 42:779