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Week 51 activities LEIR, PSB, PS & SPS

Week 51 activities LEIR, PSB, PS & SPS. S Baird on behalf of David Hay, Ray Brown, Simon Mataguez, Nicolas Gilbert and David McFarlane. Activities week 51. Not mentioning access for visual inspections AD will not restart in January 2013 LEIR there are no interventions foreseen. PSB.

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Week 51 activities LEIR, PSB, PS & SPS

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  1. Week 51 activities LEIR, PSB, PS & SPS S Baird on behalf of David Hay, Ray Brown, Simon Mataguez, Nicolas Gilbert and David McFarlane

  2. Activities week 51 • Not mentioning access for visual inspections • AD will not restart in January 2013 • LEIR there are no interventions foreseen

  3. PSB • Replace gap relay C16 Ring 2 (RF) • Tunnel ventilation preventive maintenance (CV) • Preparation for LS1 beam stopper consolidation (STI) • Lift maintenance (HE) • Lighting maintenance in technical areas (EL) • Add RADFET monitors at the beam dump (STI) • Test BT-UES30 head amplifier (BI) • Install Ethernet cables (IT)

  4. PS • Installation 4 temporary sextupoles and 1 dipole (MSC/ABP/EL) • Associated cabling • Temporary reconfiguration of power converters • Replace amplifier FT16 BCT (BI) • Maintenance rack cooling (CV) • Re-install 40MHz amplifier (RF) • Add RADFET monitors sections 15 & 77, FT16 (STI) • Prepare for cooling system for Christmas standby period (CV) • Repair transverse feedback pick-ups SS02 & SS98 (BI) • Install Ethernet cables and reconfigure star-point 354 (IT) • Measurements of crane geometry (HE)

  5. SPS • 83 IMPACT requests • Preparation visits for LS1 works • Lift maintenance and repairs from the November floods. • RP 30hrs survey • Repair of magnet QD21310 (change if needed) • Upgrade of the access scada system. (Monday morning) • EPC Powering tests of the SPS Mains to validate the Quadrupolethyristor bridges. (Thursday afternoon) • Tests and possible modification of the MSE6183 and MSE4183 converters in order to decrease the peak-peak current Ripple • Temporary cutting of power to electrical racks for TETRA project. • Installation of Fibre Optic cables from the Starpoint to the Faraday cages in BA1 (surface works)

  6. When the SPS will be open during week 51 • Monday:SPS remains closed all day. • Upgrade to the Access Scada system in the morning (All access will be blocked) • lift maintenance starts in the afternoon after the access modifications are complete. • Surface works can be done • Tuesday: SPS remains closed except the following: • Surface works • Lift maintenance. • Access to BA5 granted from 08:00 • RP 30hr Survey from 12:00 (access via BA3) • Magnet repair team in BA2 from 14:00 (access via BA3) • Wednesday: Access all day. The magnet in BA2 will be replaced on this day if the repair on Tuesday is unsuccessful. • Thursday:Access from 8am until 3pm. EPC powering tests starting at 3pm require the tunnel to be closed. • Friday: Access until 16:00. OP will do the ring patrols from 16:00hrs. SPS goes into “STAND-BY” mode for the Christmas vacation. (No planned access during this period)

  7. SPS Lift Maintenance

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