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Shut-down progress report. Weeks 10 & 11 M.Weber. General. Mechanical, electrical, cryo work Emergency power switch maintenance Online computer server upgrades Online controls software upgrades Cooling the solenoid. Layer0 clearance measurement.

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shut down progress report

Shut-down progress report

Weeks 10 & 11

M.Weber

AEM Dzero, M.Weber

general
General
  • Mechanical, electrical, cryo work
  • Emergency power switch maintenance
  • Online computer server upgrades
  • Online controls software upgrades
  • Cooling the solenoid

AEM Dzero, M.Weber

layer0 clearance measurement
Layer0 clearance measurement
  • 6.8mm radial space.Survey the clearance.- Is the overlap at Z=0 what we expect ? - Is there a restriction by previously not measured membranes ?
  • The measurements have been successfully completed
  • Clearance appears adequate for the installation of Layer 0

AEM Dzero, M.Weber

slide4

EC

Be

SNEG

AEM Dzero, M.Weber

beam pipe re connected
Beam pipe re-connected
  • Installed new SNEG pipe
  • Re-made the joints SNEG to EC and EC to Be
  • Restored dry atmosphere for SMT
  • Currently pumping(Ion Pumps)

1E-8

Thu 0800

AEM Dzero, M.Weber

installed a layer0 test module
Installed a Layer0 test module
  • Connected to the ‘real’ PS, which have been previously installed during this shut-down
  • Included into the Silicon readout
  • Remapping of cables needed for Layer0 installation next year is partially done

AEM Dzero, M.Weber

silicon
Silicon
  • Silicon has been cooled to operation temperature
  • The SMT group was able to bring up the system within hours(after several weeks without reading it out and touching (all) components of the readout, including removing all sequencers)
  • Currently working on recovering HDIs, which failed during data taking

AEM Dzero, M.Weber

slide8
Next
  • Complete silicon work in the Calorimeter Gaps
  • Close the Gaps and survey
  • Close Toroid Irons and survey
  • Activate SNEG
  • Detector and Magnets checkout
  • Survey detector position

AEM Dzero, M.Weber