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Hyper-Kamiokande Project: Conquering Earthquake Disaster and Advancing to MW J-PARC Operation

Learn about the progress and recovery of the Hyper-Kamiokande Project at the J-PARC facility after the earthquake disaster. Discover the goals and achievements of the project, including the development of high-power proton beams.

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Hyper-Kamiokande Project: Conquering Earthquake Disaster and Advancing to MW J-PARC Operation

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  1. 2012.8.22 @Open Meeting for the Hyper-Kamiokande Project at KIPMU J-PARC Status -Conquering the earthquake disaster and a new step forward to MW J-PARC operation-Yujiro IkedaJ-PARC CenterJAEA & KEK

  2. Hadron Beam Facility Materials and Life Science Experimental Facility ADS: Nuclear Transmutation (Phase 2) ５００ｍ Neutrino to Kamiokande 3 GeV Rapid Cycle Synch. (25 Hz, 1MW) 50 GeV Main Ring(0.75 MW) Linac (330m) J-PARC Facility J-PARC = Japan Proton Accelerator Research Complex Joint Project between KEK and JAEA since 2001 with 1.9 B$ 2

  3. Linac 3 GeV RCS Neutrino Beams(to Kamioka) Materials and Life Experimental Facility 50 GeVMain Ring CY2007 Beams Hadron Exp. Facility JFY2008 Beams JFY2009 Beams J-PARC Facility (KEK/JAEA） South to North Bird’s eye photo in January of 2008

  4. Materials & Life Sciences at 3 GeV Nuclear & Particle Physics at 50 GeV R&D toward Transmutation at 0.6 GeV • Goals at J-PARC Need to have high-power proton beams  MW-class proton accelerator

  5. Before the Earthquake

  6. Power upgrade scheme before 2011.3.11 3 GeV Earthquake J-PARCPower Expectation　[MW] 120 kW Operation Start 200 kW MR 30 GeV 145 kW MR 115 kW JFY2008 JFY2009 JFY2010 JFY2011 JFY2012 JFY2013 JFY2014

  7. Steady production of good exciting results Ceramics for Li battery materials log(伝導率) Crystal structure 1/T(温度) 常温 Neutron Defraction Present New materials Tokyo Institute of Technol.,Toyota、ＫＥＫ, issued 「Nature Materials」 Japanese press highlighted P42/nmc (137); a = 8.69407(18) Å, c = 12.5994(4) Å

  8. Excitement from T2K Indication of ne appearance (non-zero q13) 6 ne candidates found! Allowed region Expected BG 1.5±0.3evts 8 • Prob. of 6 are all BG: 0.7% (2.5s equiv) Selected to Physics World Top 10 Breakthroughs(England)in 2011 http://physicsworld.com/cws/article/news/48126 (Dm232>0) (Dm232<0) 90%CL range Central value

  9. Hadron Hall bustles ---waiting for beam Students, researchers, technicians, Professors, ・・・, from worldwid 2009.1.27 first beam 2009.10.22 K1.8 first beam KOTO (E15) experimental team K1.8experimental preparation KLbackground measurement K1.8 area New commer K1.8BR preparation completion of TOF counter setup KLmeasurement room at midnight TOF counters I have done !

  10. Summary • Before earthquake • 200kW beam, 400kWpower tested • 145kWfor MR FX, 6 events of electron neutrino • Experiments started at Hadron Hall • Scientific production form MLF users • JAEA：Public User Program under a Law started • Open for international users and industries • Throughout all facility, internationalization endeavor is needed • Effective program for foreign scientist to come • More promotion of neutron to industry

  11. Recovery from the Earthquake

  12. LINAC Ground water of 100 ton came into LINAC tunnel :: alert for submergence The road rose up Water was discharged After recovery Immediately after the Earthquake The ground droped down with 1.5 m

  13. 3 GeV Synchrotron (RCS) The capacitor bank collapsed Immediately after the earthquake: there were road winding and landslid The stage of power supply was bent. new old Lifted up

  14. 50 GeV Synchrotron (MR) horizontal 20 mm vertical Beam line distorted seriously Amplified x2000 Maximum 20 mm displacement (horizontal) and 8 mm (vertical) for 400 magnets 0.6 mm Height All adjusted to within 0.4 mm.

  15. Materials & Life Science Experimental Facility (MLF) Immediately after the Earthquake There were no severe damages in the MLF main building. West Extended Building Subsided ~20 cm (Experimental Halls) Dislocated a lot! Piling into basement rock Re-stacking all blocks530 pieces and 2800 tons in total The entire annex building was jacked up.

  16. Neutrino & Hadron Experimental Facilities The ground sank. An outdoor unit leaned. Fixed recovered

  17. J-PARC Recovery Schedule（@2011.5.20） 2012 2011 456789101112123 Infrastructure Linac RCS MR MLF Hadron Neutrino Emergency Recovery Full Recovery Work User Operation Start Beam Test Beam Commissioning Power-on Test Investigation Recovery Alignment MLF User Operation Investigation Recovery 3GeV synchrotron Cooling Water Power-on Test Investigation NU or HDOperation Recovery 50GeV synchrotron Power-on Test Investigation MLFUser Program New Hg Target BL Components Beam Injection Shielding recovery Materials & Life Science Experimental Facility Extended Bulg. Investigation HDExperiment Recovery Beam Injection Hadron Experimental Facility Investigation NUExperiment Recovery Beam Injection Neutrino Experimental Facility All the J-PARC members worked hard and coherently to attain the December Recovery.

  18. Nov. of 2006. The first beam was on at the Linac. Remarkably fast recovery December 9, 2011 3 days before the target date 14:00 Beam went throughout the Linac at 3 MeV with RFQ acceleration. 09:30 Key was on.

  19. Resuming User Operation

  20. History of beam power (3GeV RCS) 280 kW on June 29 Smooth recovery has been achieved Restored the J-PARC from the Great East Japan Earthquake within a year. 200 kW

  21. Neutron and Muon User Program Very high fractional ratio of industrial applications Increase of proposals Affiliation of approved proposals (General Use) Trend of Number of Proposals

  22. Recent Results • 10 electron neutrino candidates are detected • Expected BG (q13=0) is estimated to be 2.73±0.37 evts • Probability to observe >=10 evts w/ q13=0 is 0.08% (3.2s) • C.f. 0.7% (2.5s) in 2011 Evidence of ELECTRON NEUTRINO APPEARANCE Reported at the IIV International Conference on Neutrino Physics and Astrophysics (Neutrino2012)

  23. Summary • Quick recovery for the earthquake • Facility and beam is on. • User operation resumed. • Stable operation since then • Till now, 3GeV 200kW, even 300kW at MLF, • Keeping 8 cycle user time, • In 2013, preparatory work for1MW at RCS will be shceduled.

  24. Govrnment review and 5year plans 2012 March to June • After previous review 5 years ago • The great east Japan earth quake • Next 5 years plan and priority

  25. High priority demands from now • Red = JAEA • Blue = KEK • Accelerator and neutrino : Power • RCS 1 MW • MR750kW（MR Power supply improvement） • Neutron • New BL (JAEA 3, KEK 1) , Computer, Sample environment • Muon • New S-line (mSR)and H-line (g-2, EDM) • ハドロン • High momentum beam line + COMET (m->e) • ADS(Accelerator Driven Nuclear Transmutation) • Facility buildings • User main building, Radioactive materials storage, Lodging Clear prioritize is needed Keeping budget for 200 days operation is critical key. ＊ cost rise is headache.

  26. Near term operation schedule

  27. FY2012 operation schedule As many as possible, provide user time 8cycles（～180 days） From October, RCS for ＭＬＦ: >300kW ＭＲ for ＦＳ >200kW for SX >10kW Continue operation regardless of the new year holiday To keep machine time as much as for 5 s of neutrino events.

  28. FY2013 operation schedule Operate by the end of July even it is Summer time!! Cost pushing • Installation and tests of all needed • for 1MW: • 400 MeVLINAC • 1MWIon source, RFQ • 132 days user operation time Time Shift Trying to keep enough machine time for 5 s statistics of neutrino events!!

  29. Promise • J-PARC is the facility to get as much value you can in your science. Thank you very much for your attention!

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