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Planned activities on collimator for LS1

Planned activities on collimator for LS1. O . Aberle – 25/03/13 With input from P. Bestmann, S. De Man and F. Loprete. Main activities during the LS1. TDI.4R8 and TDI.4L2 Collimator exchange Collimator standard maintenance TIM / Robot intervention / observations Alignment

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Planned activities on collimator for LS1

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  1. Planned activities on collimator for LS1 O. Aberle – 25/03/13 With input from P. Bestmann, S. De Man and F. Loprete

  2. Main activitiesduringthe LS1 • TDI.4R8 and TDI.4L2 • Collimatorexchange • Collimatorstandardmaintenance • TIM / Robot intervention/observations • Alignment • Outlook O. Aberle – CWC

  3. TDI‘sduring LS1 until LS2 • TDI.4L2 (TDI 001 will be replaced by reconditioned spare(TDI 003) (Oct? – Nov?) • TDI.4L2 (TDI 001) will upgraded with the new beam screen and additional temperature sensors, for installation in Pt. 8 • Installation in slot TDI.4R8 • Old TDI.4R8 (TDI 002) to be reconditioned, prepared as spare Pt. 2 • Produce a new TDI 004 as spare for Pt. 8 • After LS 1 four TDI’s with new beam screens, two installed, two spares • New design for LIU for LS2 O. Aberle – CWC

  4. Collimatorexchange • New production of 16 + 4 TCTP • New production of 2 + 1 TCSP • New production of 2 + 1 TCAPD • Preparation of 2 spare TCLP • Preparation of 1 spare TCP • Layout modification in Pt. 8, removal of 2 TCTVB, shifting TCLIA • Pt. 1: Replacement of 4 TCT + by 4TCTP + installation of 2 TCLP • Pt. 2: Replacement of 2 TCT + 2 TCLP by 4 TCTP • Pt. 3: Installation of 2 new TCAPD • Pt. 5: Replacement of 4 TCT + by 4TCTP + installation of 2 TCLP • Pt. 6: Replacement of 2 TCS by 2 TCSP • Pt. 7: Remove first two TCP per beam during ventilation door installation (to prevent damage) and exchange the skewed TCP of IR7L • Pt. 8: Replacement of 2 TCT + 2 TCTVB by 4 TCTP O. Aberle – CWC

  5. Collimatorstandardmaintenance • Check each collimator mechanics and electronics. • Cycle from out to in, to anti-collision and back to out. • Check 5th axis for clearance • Check water cooling flow • Check temperature sensors • Check switches, LVDT’s, resolvers, motors and drivers • Map sound profile for each collimator • Check rails • Check roller screws O. Aberle – CWC

  6. Collimatorrollerscrewreplacement (2011-12) Dustanddebris in the end capandthehousing Some dry screwsregreased Uptodate 3 rollersscrewshavebeenexchanged. -No linear bearing -2 LVDT‘s -1 motor -2 switches O. Aberle – CWC

  7. TIM andRobot intervention • Sound inspection of the collimators done with the TIM in S34 (23/24 April 2012). • Visual and acoustic inspections with camera can be useful in the future (TIM automatically, Telemax robot more flexible). • Vacuum disconnection testing with the Telemax robot on-going. • Use of robot for visual inspections/leak tests (He spray). • Profit from the long shutdown to verify the integration and do some hardware tests to confirm the procedures. O. Aberle – CWC

  8. Alignment • Survey is working in the whole machine. • During smoothing, magnets will be aligned and collimators checked (and adjusted if needed). • IR 3 and IR 7 are equipped with additional targets for remote verification with the stretched wire. • New collimators (TCTP, TCSP and TCAPD) will be aligned. • The TCP’s removed during the installation of the ventilation doors + the skewed TCP in IR7L to be checked (high radiation levels, how much deviation can be tolerated?). O. Aberle – CWC

  9. Outlook • Improve the sound and image quality for the TIM, very powerful tool for the future. • Investigate on the capabilities of the Telemax or similarrobots for inspections and interventions. • Reference sound recording of all collimators. • Improve the accessibility to the screw (cap) (Phase 2!) • A regular check during long breaks and shut-downs with re-lubrication of the screw. • Automatic motion cycles during LS1 to be planned. • Check every slot for 5th axis motion limitations. O. Aberle – CWC

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