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Japanese activities in LHC

Japanese activities in LHC. Takahiko Kondo, KEK November 28, 2005 KEK-DESY 1st Collaboration Meeting in Tokyo. Brief history. 1994.12 CERN Council approved LHC in 2 steps 1995.5 Monbusho announced 1st contribution to LHC of 5 BYen (65 MCHF). 1996.3 India announced contribution of $ 12.5M.

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Japanese activities in LHC

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  1. Japanese activities in LHC Takahiko Kondo, KEK November 28, 2005 KEK-DESY 1st Collaboration Meeting in Tokyo

  2. Brief history 1994.12 CERN Council approved LHC in 2 steps 1995.5Monbusho announced 1st contribution to LHC of 5 BYen (65 MCHF). 1996.3 India announced contribution of $ 12.5M. 1996.6 Russia agreed with contribution of 67MCHF (incl. detectors). 1996. Canada agreed with contribution of Canadian$ 30M. 1996.12Monbusho announced 2nd contribution of 3.85 BYen (44 MCHF). 1996.12 CERN Council approved LHC in 1-step. 1997.12 US agreed with contribution of $200M (accelerator) + $331M (detectors). 1998.5Monbusho announced 3rd contribution of 5 BYen (56 MCHF). 2002.6 LHC completion changed to 2007.

  3. LHC Construction KEK developed/constructed 16 low-b insertion quadpole magnets for LHC IPs. KEK Fermilab Interaction point

  4. LHC Low-b Insertion Quadupoles by KEK Designed by KEK, Manufactured by Toshiba, High Gradient: G = 215 T/m, Large Aperture : 70 mm at KEK for excitation test at Toshiba

  5. LHC Low-b Insertion Quadupoles by KEK Quench history of 19 magnets • All magnets exceeded 215T/m. • Multipole components are controlled at 10-4 or smaller. • Coils were shipped to Fermilab for installation into cryostats. • R&D on Nb3Al conductor to be started soon for LHC upgrade. vertical test station at KEK for field measurement

  6. ATLAS Collaboration Diameter 25 m Barrel toroid length 26 m End-cap end-wall chamber span 46 m Overall weight 7000 Tons Construction cost ~ 540 MCHF+…

  7. ATLAS Collaboration Diameter 25 m Barrel toroid length 26 m End-cap end-wall chamber span 46 m Overall weight 7000 Tons Construction cost ~ 540 MCHF+… as of Nov. 4 2005

  8. ATLAS Collaboration 34 Countries 151 Institutions ~1300 Scientific Authors 15 institutes from Japan ~ 60 physicists 10 institutes from Germany ~ 110 physicists Albany, Alberta, NIKHEF Amsterdam, Ankara, LAPP Annecy, Argonne NL, Arizona, UT Arlington, Athens, NTU Athens, Baku, IFAE Barcelona, Belgrade, Bergen, Berkeley LBL and UC, Bern, Birmingham, Bonn, Boston, Brandeis, Bratislava/SAS Kosice, Brookhaven NL, Bucharest, Cambridge, Carleton/CRPP, Casablanca/Rabat, CERN, Chinese Cluster, Chicago, Clermont-Ferrand, Columbia, NBI Copenhagen, Cosenza, INP Cracow, FPNT Cracow, Dortmund, JINR Dubna, Duke, Frascati, Freiburg, Geneva, Genoa, Glasgow, LPSC Grenoble, Technion Haifa, Hampton, Harvard, Heidelberg, Hiroshima, Hiroshima IT, Indiana, Innsbruck, Iowa SU, Irvine UC, Istanbul Bogazici, KEK, Kobe, Kyoto, Kyoto UE, Lancaster, Lecce, Lisbon LIP, Liverpool, Ljubljana, QMW London, RHBNC London, UC London, Lund, UA Madrid, Mainz, Manchester, Mannheim, CPPM Marseille, MIT, Melbourne, Michigan, Michigan SU, Milano, Minsk NAS, Minsk NCPHEP, Montreal, FIAN Moscow, ITEP Moscow, MEPhI Moscow, MSU Moscow, Munich LMU, MPI Munich, Nagasaki IAS, Naples, Naruto UE, New Mexico, Nijmegen, Northern Illinois, BINP Novosibirsk, Ohio SU, Okayama, Oklahoma, LAL Orsay, Osaka, Oslo, Oxford, Paris VI and VII, Pavia, Pennsylvania, Pisa, Pittsburgh, CAS Prague, CU Prague, TU Prague, IHEP Protvino, Ritsumeikan, UFRJ Rio de Janeiro, Rochester, Rome I, Rome II, Rome III, Rutherford Appleton Laboratory, DAPNIA Saclay, Santa Cruz UC, Sheffield, Shinshu, Siegen, Simon Fraser Burnaby, Southern Methodist Dallas, NPI Petersburg, Stockholm, KTH Stockholm, Stony Brook, Sydney, AS Taipei, Tbilisi, Tel Aviv, Thessaloniki, Tokyo ICEPP, Tokyo MU, Toronto, TRIUMF, Tsukuba, Tufts, Udine, Uppsala, Urbana UI, Valencia, UBC Vancouver, Victoria, Washington, Weizmann Rehovot, Wisconsin, Wuppertal, Yale, Yerevan

  9. Top 10 countries in ATLAS construction sharing Note : additional cost to complete = 68 MCHF (15 %)

  10. ATLAS Detector: cost sharing (1/2)

  11. ATLAS Detector: cost sharing (2/2) （　1 MCHF ～ 0.9 億円　）

  12. ATLAS Japan Review Committee • Held at KEK on March 24, 1998, charged by IPNS Director S. Yamada. • Committee members: Y. Nagashima, J. Arafune, A. Masaike, T. Ohshima, S. Olsen, K. Takikawa, A. Wagner, T. Yamazaki. • Committee’s main recommendation: “…….However, to maintain long-term activity and to be productive in the physics results, an adequate supply of manpower is needed…..”

  13. ATLAS Central Solenoid : 100% responsibility by KEK Specific features to minimize material thickness - Use of high strength Aluminum stabilizer for SC cables - Common cryostat with LAr barrel EM calorimeter

  14. ATLAS Central Solenoid : 100% by KEK Coil at Toshiba (1999) Tested in Japan (Dec. 2000) Arrived at CERN（Sep. 2001） Photo with L. Maiani Insertion into LAr Cryostat (Feb. 2004)

  15. ATLAS Central Solenoid Excitation test (July 2004) Transported to the ATLAS Cavern (Oct. 2004)

  16. ATLAS Central Solenoid Solenoid, LAr and Tile Calorimeter moving to the ATLAS center (Nov. 4, 2005) as of last week Final joint welding planned this week

  17. Thin Gap Chambers (TGC)for ATLAS muon triggering in EC region • 3600 chambers • 320,000 channels • Total area ~2,000 m2 Joint Construction by Israel, Japan and China

  18. 1200 TGC chambers were produced at KEK We accomplished 2 chambers/day and finished 1200 TGC chambers in 4 years carbon spray soldering checking & HV test before closing epoxy gluing wire winding packing

  19. Inspection of all TGC chambers using cosmic-rays at Kobe University efficiency map of a TGC chamber TGC chamber inspection station Packing in air-conditioned containers by marine transportation to CERN.

  20. ATLAS TGC trigger chambers TGCs arrived at CERN First 1/12 sector of the “Big-Wheel” was assembled at CERN bldg. 180. (Oct. 2005)

  21. TGC Trigger and Readout System Japan is responsible nearly 100% 16ch ASD board （24,000 units） All ASD tested in China A set of readout unit mounted on chambers 4 ASIC chips developed by students

  22. TDC chips for ATLAS muon drift tubes (MDT) KEK responsible 100%. The design is base on KEK’s patented idea, directly digitizing time difference using CMOS memory. data 24ch TDC chips for ATLAS MDT, 20,000 chips made. clock delay delay delay • ~ 300 ps, non-linearity<+-80ps * Similar chips used in H1 at HERA, Phenix, D0, K2K……. Mounted on ATLAS MDT

  23. ATLAS Silicon Micro-strip Detector (SCT) 4 sensors/module The module is based on Japan’s idea. KEK assembled 980 modules (40%) . Sensor alignment system (KEK) The accuracy of module assembly is mostly within +-2 mm, the best performance among four assembly sites.

  24. Installation of the SCT modules at Oxford U. Work finished in July 2005. Two module mounting robots were designed by KEK and manufactured in Japan and worked very well at Oxford Univ. to mount 100 modules per week without troubles.

  25. Development of Geant4 • Geant4 is proposed jointly by CERN and Japan in 1994 (RD44). • Object-oriented software technology for wide-spread users. • 1st version completed in 1998. • All LHC experiments uses Geant4. • Maintenance agreement between CERN, KEK, SLAC ….. • No bugs arising from Geant4 over 35,000 jobs in ATLAS.

  26. Germany France Italy Canada UK Russia USA Israel Netherlands ATLAS CERN China Construction, M&O Data, Gridrid JAPAN KEK Tier-2 Center at Univ. of Tokyo 15 Japanese Institutes : KEK, Tsukuba, Tokyo, Tokyo Metropolitan, Shinshu, Ritsumeikan, Kyoto, Kyoto Education, Osaka, Kobe, Naruto Education, Okayama, Hiroshima, Hiroshima IT, Nagasaki Science U.

  27. ATLAS Tier-2 Center in being build at ICEPP of Univ. of Tokyo Meanwhile, preparation for data analysis and physics simulation have been progressing

  28. Summary • Japan contributed 13.85 BYen for LHC Construction. • KEK completed development and production of 18 low-b insertion quadrupoles for the LHC interaction points. • Japanese ATLAS team including KEK finished most of the component production on Solenoid, Muon Trigger chambers/electronics and Silicon detectors. It is in the middle of working on installation and commissioning.

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