1 / 18

The CERN-JINR Collaboration J. Engelen March 27, 2006

The CERN-JINR Collaboration J. Engelen March 27, 2006. CERN - JINR Collaboration. From (before) NA4 to the LHC Programme Also: NA48, NA48/1, NA48/2 , NA48/3 HARP COMPASS DIRAC. х 10 -4. 35. 30. KTeV. 25. NA31. 20. 15. 10. NA48. E731. 5. 0. 1993. 1993.

chaim
Download Presentation

The CERN-JINR Collaboration J. Engelen March 27, 2006

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The CERN-JINR Collaboration J. Engelen March 27, 2006

  2. CERN - JINR Collaboration From (before) NA4 to the LHC Programme Also: NA48, NA48/1, NA48/2, NA48/3 HARP COMPASS DIRAC

  3. х 10-4 35 30 KTeV 25 NA31 20 15 10 NA48 E731 5 0 1993 1993 1999 2001 2002 2003 ExperimentsNA48, NA48/1, NA48/2 (SPS@CERN) CP-violating parameter in K0 2p decays LKr cryostat – first ISTC - CERN Re(e’/e) = (14.7  2.2)  10-4 + 23 t of Krypton -Russian Industry for CERN experiment NewNA48/2 results on direct CP-violating charge asymmetry in K±3 slopes Cusp Effect “Charged” mode K±3± Agc =(1.7 ± 2.9)10-4 K ± -> π±π0π0 First ObservationKS 0e +e – KS 0mm KS 0γγ “Neutral” mode K±00± Ag0 = (1.8 ± 2.6)10-4 M(π0π0), GeV/c2 (a0-a2)m(π+) = 0.264 ± 0.015

  4. JINR The LHC Transverse Damping SystemCERN – Russia - JINR LHC Damper • Transverse Damping System is a feedback with a real-time digital signal processing for: • damping of transverse injection oscillations, • feedback curing transverse coupled bunch instabilities, • excitation of transverse oscillations for beam measurements and other applications. • The Damper is in the list of the systems that must operate already for first beam injection. Therefore the schedule of construction and installation of the Damper in the machine must be completed in 2006 and testing in the accelerator will start in November 2006. • JINR’s obligations: • 20 deflectors (kickers) & 20 twin-amplifiers. CMS LHCb ALICE ATLAS

  5. JINR The LHC Damper: kickers After three weeks of hard work by the JINR team on visit at CERN 18 kicker tanks (9 modules) are finally finished 18 kicker tanks (9 modules) assembled waiting for bake-out by AT-VAC in hall 113 (March 22, 2006) CERN team between finished modules wishing to congratulate their JINR colleagues for their achievement

  6. JINR LHC Damper: future plans • During 2006 the following items must be completed: • series production of 15 wideband twin power amplifiers and their testing at the specialized test stands of LPP (JINR) and AB/RF (CERN) • assembly of two spare kicker tanks • vacuum bake-out of 20 kickers/deflectors at CERN by AT/VAC (April 2006) • transportation and installation of 4 units (=8 modules) in the LHC tunnel in July 2006 as well as hardware commissioning in November 2006. • Participation in beam commissioning in 2007 and in future electronics design is being discussed.

  7. SUPERCONDUCTING COIL Total weight : 12,500 t Overall diameter : 15 m Overall length : 21.6 m Magnetic field : 4 Tesla Silicon Microstrips Pixels The CMS Detector Spokesperson: M. Della Negra CALORIMETERS Scintillating PbWO4 crystals ECAL HCAL Plastic scintillator/brass sandwich IRON YOKE TRACKER MUON ENDCAPS MUON BARREL Cathode Strip Chambers Resistive Plate Chambers Drift Tube Resistive Plate Chambers Chambers

  8. CMS Solenoid Magnet reached nominal operating temperature for the first time on 25 Feb. Cooldown took 24 days. Energize in May. Cool-down achieved by pumping helium gas at liquid nitrogen temperature (-196oC) and then as liquid helium. Coil: 14.5t sc cable, 74t pure Al, 126t high strength Al 300 K max 210 min 120 0 3/2 15/2 25/2

  9. CMS Endcaps Lower in September CSCs and RPCs on YE+1 RPCs on YE+2

  10. ATLAS (spokesperson Peter Jenni) Diameter 25 m Barrel toroid length 26 m End-cap end-wall chamber span 46 m Overall weight 7000 Tons

  11. Barrel Toroid installation status The mechanical installation is complete, electrical and cryogenic connections are being made now, for a first in-situ cool-down and excitation test in spring 2006

  12. MDT Chamber Production (w/o EE) 1200 Bare MDT Plan Bare MDT Integrated MDT 1000 Tested MDT Installed MDT Plan Installation 800 No. Chambers 600 400 200 0 Jan-00 Jan-01 Jan-02 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Time Barrel Muon MDTs A major effort is spent in the preparation and testing of the barrel muon stations (MDTs and RPCs for the middle and outer stations) before their installation in-situ The electronics and alignment system fabrications for all MDTs are on schedule Installation of barrel muon station

  13. ALICE Detector ACCORDE TOF TRD HMPID TPC PMD PHOS ITS Muon arm Spokesperson J. Schukraft

  14. ALICE Magnet field mapping

  15. JINR This very fruitful and successful collaboration has an excellent future, in particular with the LHC and the LHC experiments now very near to completion with start of operation in 2007

More Related