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Muon Shutdown meeting February 14, 2011. Burkhard Schmidt. Work done in week 6 (Feb ruary 7-11 ). Gas system : S oftware upgrade took place on Tuesday and went smoothly. Membrane in the pump module has been changed on Friday. DSS alarms have bneen disabled for both interventions.
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Muon Shutdown meeting February 14, 2011 Burkhard Schmidt
Work done in week 6 (February7-11) • Gas system : • Software upgrade took place on Tuesday and went smoothly. • Membrane in the pump module has been changed on Friday. DSS alarms have bneen disabled for both interventions. • D • Chamber repair: • Chamber M5A 14A3 needed to be fixed. To reach it, M2-M5A had to be opened and chamber 14A1 had to be dismounted . . . All went well (many thanks to Nikolai) and M2-M5 A-side has been closed again. • PVSS issuesand system tests: • See piquet report by Daivde.
Pending issues • M2-M5 survey: • Jean-Christophe offered to re-survey the M2-M5 A-side. Will be done tomorrow morning. • HV-settings: • Lower HV by about 50V on some regions. To be applied still • Gas System: • Go back to nominal gas mixture for the GEMs. Planned for tomorrow morning. • Data taking: • Take a long cosmic run with the Calorimeters and OT.