MATERIAL DEVELOPMENT IN LEAD BISMUTH SPALLATION TARGET SYSTEM - PowerPoint PPT Presentation

MATERIAL DEVELOPMENT IN LEAD BISMUTH SPALLATION TARGET SYSTEM Kenji KIKUCHI, Shigeru SAITO, Dai HAMAGUCHI, Masao TEZUKA, Hironari OBAYASHI / J-PARC Center Practice Prospect 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

Liq. He ADS RF Injector Beam duct RFQ DTL Superconducting linac P Beam Beam window window MA PbBi (Am,Cm) n Reactor MA The Achilles’ tendon is a PbBi beam window in ADS. We will replace every ?-year. 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

Transmutation Experimental Facility (TEF) Transmutation Physics Experimental Facility : TEF-P ADS Target Test Facility : TEF-T 10W Critical Assembly 200kW Pb-Bi Target Shield Laser Charge Exchange 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

ADS Target test facility • LBE spallation target test had planned in J-PARC phase II program. • LBE controlling techniques acquisition was a goal of R&Ds. • LBE loops were run for corrosion-erosion (JLBL-1), target model (JLBL-2) and thermal fluid (JLBL-3) • Proton irradiation depended on SINQ at PSI(STIP & MEGAPIE). 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

Lead Bismuth Loop - 1 for corrosion JLBL-1 JLBL-1 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

Production of PbO Production of PbO RTlnP O 2 O 4 3 O Dissolution of Fe 3 Dissolution of Fe 4 Temperature 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

Y LBE Velocity Zero Vo X 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

JLBL-2 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

10 th OECD NEA Meeting on AFPP and T, Mito, 2008

JLBL-3 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

10 th OECD NEA Meeting on AFPP and T, Mito, 2008

K HAYASHI, et. al, AESJ, 7-1, 2008,P44-57. 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

STIP 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

RT ２５０℃ 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

S SAITO, et. al, JNM, 343, 2005,P253-261.

100 µ m 100 µ m Fig. 11. Fracture surface of tensile Fig. 12. Fracture surface of specimen irradiated to 10.1 dpa tensile specimen irradiated to and tested at RT . 10.1 dpa and tested at 250 o C . K KIKUCHI, et. al, AccApp03, 2003.

Corrosion in another loop 450℃×3000h 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

F82H<500C JPCA<450C 4 5 0 ℃ × 4 5 0 ℃ × 450℃×1000h 450℃×1000h 1000h 1000h 10 µ m 10 µ m 450℃×3000h 4 5 0 ℃ × 4 5 0 ℃ × 3000h 3000h 500℃×1000h 500℃×1000h 5 0 0 ℃ × 5 0 0 ℃ × 1000h 1000h K KIKUCHI, et. al, JNM, 377, 2008,P232-242 10 th OECD NEA Meeting on AFPP and T, Mito, 2008

Achievements of our Practice • Proton irradiation Data base for austenitic steel have been obtained up to 20 dpa, which included mechanical property and micro-nano structure. • JLBL-1 Materials property under LBE flow was obtained through 18000 hrs run. Oxygen sensor property and performance of EMP were investigated. • JLBL-2 EMP drove LBE in the coaxial counter flows. EMF performance was investigated. Ultrasonic Doppler prove visualized LBE flow. • JLBL-3 Massive flow control was experienced (500L/min). Heat transfer coefficient of the beam model was formulized. 10 th OECD NEA Meeting on AFPP and T, Mito, 2008