Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T1 R&D ACTIVITIES ON ACCELERATOR- DRIVEN TRANSMUTATION SYSTEM IN JAERI Hiroyuki Oigawa, Kazufumi Tsujimoto, Kenji Kikuchi, Yuji Kurata, Toshinobu Sasa, Makoto Umeno, Shigeru Saito, Kenji Nishihara, Motoharu Mizumoto, Hideki Takano, and Nobuo Ouchi

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T2 Contents Design Study of ADS R&D on Accelerator R&D on Pb-Bi (LBE) Spallation Target and Coolant R&D on Subcritical Reactor Physics Transmutation Experimental Facility (TEF) in J-PARC Project  Transmutation Physics Experimental Facility (TEF-P)  ADS Target Test Facility (TEF-T) Part of this work was funded by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) as one of the R&D programs for innovative nuclear systems.

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T3 JAERI’s Reference ADS Primary pump Steam generator Proton beam Inner barrel Beam duct Beam window Reactor vessel Core barrel Guard vessel Core support structure 13.5m 11.8m Proton beam : 1.5GeV Spallation target : Pb-Bi Coolant : Pb-Bi Max. k eff = 0.97 Thermal output : 800MWt MA initial inventory : 2.5t Fuel composition : (MA +Pu)Nitride + ZrN Initial loading: Zone-1: Pu/HM=30.0% Zone-2: Pu/HM=48.5% Transmutation rate : 10%MA / Year 600EFPD, 1 batch Proton beam : 1.5GeV Spallation target : Pb-Bi Coolant : Pb-Bi Max. k eff = 0.97 Thermal output : 800MWt MA initial inventory : 2.5t Fuel composition : (MA +Pu)Nitride + ZrN Initial loading: Zone-1: Pu/HM=30.0% Zone-2: Pu/HM=48.5% Transmutation rate : 10%MA / Year 600EFPD, 1 batch

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T4 Outline of the R&D Activities 3-year Program:  Funded by MEXT for  Including SC-LINAC, LBE, and Reactor Design for Future Plant. J-PARC:  Phase-1 Accelerator is being constructed.  TEF is in Phase-2 (after completion of Phase-1) 3-year Program R&D for Future ADS without Proton BeamJ-PARC Experimental Program using Proton Beam Experimental ADS and Commercial Plant Feasibility Assessment International Collaboration Collaboration in Japan

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T5 Development of Superconducting LINAC Development of Pb-Bi Target/Coolant Development of Subcritical Reactor High Energy Accelerator Research Organization (KEK) Mitsubishi Heavy Industries Ltd. Mitsui Engineering and Shipbuilding Co. Ltd. Mitsubishi Electric Corporation Tohoku University Japan Nuclear Cycle Development Institute (JNC) Hokkaido University Tokyo Institute of Technology Nagoya University Kyoto University Research Reactor Institute Collaboration in Japan

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T6 Design Study : Neutronics Keff: 0.97 – 0.94 Maximum beam : 1.5 GeV x 18 mA = 27 MW In this study, 30MW is adopted, though 20MW will be sufficient in the equilibrium cycle. Keff: 0.97 – 0.94 Maximum beam : 1.5 GeV x 18 mA = 27 MW In this study, 30MW is adopted, though 20MW will be sufficient in the equilibrium cycle.

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T7 Design Study : Thermal-hydraulics (1) Spallation Target and Core Coolant Core barrel Core region Reflector Support structure Coolant flow Beam window Beam duct Proton beam Target region Beam duct support Partition wall Flow control nozzle Partition wall Flow control nozzle Optimization of design parameters:  Inlet temp. : 300 ºC  Beam duct : 45cm Partition wall Flow control nozzle Optimization of design parameters:  Inlet temp. : 300 ºC  Beam duct : 45cm 30 MW proton beam with 1.5 GeV causes heat deposition of 15.7MW.

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T8 Design Study : Thermal-hydraulics (2) Analytical Results for Beam Window (unit: Kelvin) 450 o C 470 o C 490 o C Outer surface temperature of beam window (unit: m/s) 1.8m/s 0.2m/s 2.0m/s Maximum temperature of outer surface : 490 ºC Flow control nozzle cools the bottom of the beam window effectively. Maximum temperature of outer surface : 490 ºC Flow control nozzle cools the bottom of the beam window effectively. Flow speedTemperature

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T9 R&D on Accelerator : SC-LINAC 972 MHz Cryomodule 9-cell, (  =0.725) He vessel : Ti (2K) Maximum surface electric field > 30 MV/m Installed Cryomodule Superconducting Cavity Vacuum vessel Liquid He vessel Superconducting cavity (9-cell) RF power coupler 4m 1.2m

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T10 R&D on Accelerator : J-PARC (1) Site Plan Transmutation Experimental Facility 3 GeV Synchrotron Material and Life Science Facility Nuclear Physics Facility 50 GeV Synchrotron (1500m L ) Neutrino Facility 500m LINAC (350m L ) Phase-1: 400 MeV Phase-2: 600 MeV J-PARC : Japan Proton Accelerator Research Complex Construction of Phase-1 : (except for some parts) Transmutation Experimental Facility and 600 MeV LINAC are in Phase-2.

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T11 R&D on Accelerator : J-PARC (2) Status of Construction Feb. 2004

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T12 Sep April 2004 Sep, 2004 R&D on Accelerator : J-PARC (3) LINAC Building

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T13 R&D on Accelerator : J-PARC (4) LINAC Beam Test Beam test is under way at KEK/Tsukuba up to 20 MeV, 30mA. It will be moved to JAERI/Tokai Drift Tube LINAC ( < 60 MeV) RFQ ( < 3 MeV)

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T14 R&D on LBE : Corrosion (1) Static Test Ferrite : Corrosion film depends on the Cr content. 5%Si –added steel exhibited fine corrosion resistance. JPCA Si-added steel Corrosion Depth (  m) Ferrite Austenite Si-added Cr(wt%) 550 ºC, 3000 hr. Oxygen - saturated 20  m

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T15 R&D on LBE : Corrosion (2) Loop Test F82H (martensitic) and JPCA (austenitic) are being tested as candidate materials for beam window. Expansion Tank EM Pump Test Section Drain Tank Air Cooler JAERI Pb-Bi Loop-1 (JLBL-1) Flow rate : 5L/min. Temperature : 450ºC MES Pb-Bi Loop Flow rate : 5L/min. Temperature : 500ºC 3000 hr. continuous operations were successfully completed. Test tubes were analyzed hr. continuous operations were successfully completed. Test tubes were analyzed.

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T16 R&D on LBE : Thermal-hydraulics at Beam Window Heat transfer characteristics are being measured by changing flow rate ( L/min.) and inlet temperature ( ºC) parametrically. Block diagram LBE Loop for Beam Window LBE at Overflow Section Circulation Pump Flow Meter Perforated Plate Test Vessel M Fl Heater

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T17 R&D on LBE : Behavior of Radioactive Impurity Production rate of Polonium (Po) in Pb-Bi was measured by irradiating Pb-Bi in JMTR. No large discrepancy was observed between the calculation and the measurement. Evaporation rates of Tellurium (Te) from Pb-Bi were measured as a function of temperature to verify the experimental method. Using the irradiated Pb-Bi, evaporation rates of Po is being measured. Production rate of Polonium (Po) in Pb-Bi was measured by irradiating Pb-Bi in JMTR. No large discrepancy was observed between the calculation and the measurement. Evaporation rates of Tellurium (Te) from Pb-Bi were measured as a function of temperature to verify the experimental method. Using the irradiated Pb-Bi, evaporation rates of Po is being measured. Heater Ar gas Sampling Irradiated Pb-Bi Po Heater Transpiration method Pb-Bi irradiation capsule

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T18 R&D on Subcritical Reactor Physics : Uncertainty of reactor physics parameters are estimated by the sensitivity of nuclear data calculated by SAGEP code and the error files evaluated for JENDL-3.3. Preliminary analysis showed that the capture reaction of Am-241 has significant effect on k-eff. Uncertainty of reactor physics parameters are estimated by the sensitivity of nuclear data calculated by SAGEP code and the error files evaluated for JENDL-3.3. Preliminary analysis showed that the capture reaction of Am-241 has significant effect on k-eff. FissionCapture Np %0.25% Pu %0.07% Pu %0.03% Pu %0.02% Am %0.57% Am %0.23% Total0.76% Estimated uncertainty on k-eff of BOC of initial cycle Sensitivity of Nuclear Data to k-eff at the beginning of initial cycle

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T19 ADS Target Test Facility : TEF-T Critical Assembly Pb-Bi Target Shield 200kW 10W Laser Charge Exchange Transmutation Physics Experimental Facility : TEF-P Transmutation Experimental Facility (TEF)

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T20 Proton beam Fixed half assembly Movable half assembly Fuel loading machine Movable shield Core Safety/control rod drive mechanism Max. power : ~ 500W, Max beam : ~10 W (~10 12 n/s) Experiments in critical state can also be performed. Transmutation Physics Experimental Facility (TEF-P) :

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T21 Liquid Target is contained in sealed-tube Primary circuit devices are completely isolated Safe and quick replacement is possible. Material database can be established by changing irradiation conditions such as temperature, flow rates, beam intensity, oxygen concentration, etc. Liquid Target is contained in sealed-tube Primary circuit devices are completely isolated Safe and quick replacement is possible. Material database can be established by changing irradiation conditions such as temperature, flow rates, beam intensity, oxygen concentration, etc. Irradiation samples Protons Target room EM pump EM flowmeter Heat exchanger He Pb-Bi ADS Target Test Facility (TEF-T): Double-annular Type Pb-Bi Target

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T22  Check and Review (C&R) by Atomic Energy Commission will be necessary to start TEF.  Safety review is necessary for TEF-P before the construction and the manufacturing because it is a nuclear reactor facility.  R&Ds for TEF:  TEF-P: Instrumentation, Laser charge exchange  TEF-T: Pb-Bi technology, Material irradiation effect Fiscal Year Milestone J-PARC LINAC TEF 180MeV 400MeV 600MeV ▼Establishment of New Organization C&R ▼Licensing of TEF-P Construction Commissioning Safety review TEF-P TEF-T R&D, Design Expected Schedule of TEF (Preliminary)

Nov. 9-11, 2004, Las Vegas, USA8th OECD/NEA Information Exchange Meeting on P&T23 Summary Wide range of R&D activities on ADS for transmutation are in progress.  Design Study of ADS (Neutronics, Thermal-hydraulics, Structure)  Accelerator (SC-LINAC, J-PARC Project)  Pb-Bi (LBE) (Corrosion, Thermal-hydraulics of Beam Window, Po)  Subcritical Reactor Physics Transmutation Experimental Facility (TEF) in J-PARC Project  Transmutation Physics Experimental Facility (TEF-P)  ADS Target Test Facility (TEF-T) To initiate TEF project, supports from foreign colleagues are greatly appreciated.