Remaining LHCb related tasks during LS1 with DT involvement LHCb/DT meeting, May 19, 2014
VELO and Muon detectors VELO: replacement VELO needs to be brought in a safe position while heavywork is done in the surface building from June onwards. Muon: Work on chambers to improve the grounding (carried out by Nikolai), is to 90 % done. Two GEM chamber in M1 need still to be replaced (by INFN colleagues). Detector closing and alignment is a major effort. Preparations for the installation of additional shielding under HCAL need to carried out before the summer, in close consultation with our colleagues working on the calorimeters.
Calorimeter Consolidation of calorimeter moving system before end of June with Annecy colleagues as main actors, but Robert will assist them. – Remplacement des soufflets des vis a billes SPD cote A et C et alignement. – Remplacement des soufflets des vis a billes ECAL cote A et alignement – Installation d'un systeme de fermeture des portillons des plateformes ECAL et HCAL cote A et C et passage des cables – Reparation du end switch HCAL cote C (remplacement et passage de nouveaus cables) – Cablage, controle et mise en fonctionnement des nouvelles protections (end-switch, fermeture portillons) – Mise a niveau du systeme de commande et de l'armoire de controle des deplacements ECAL/HCAL. In addition about 2 ½ days are needed for calorimeter movements, about ½ day per week.
HERSCHEL (FSC) Installation of 5 Forward Shower Counters (FSC) stations (4 scintillation counters per station) in the LHC tunnel before the cool-down of sectors78 and 81. Installation should be done in August. Preparation of mechanics done with PNPI technician. Installation of cables for the counters, including supports and holes to pass through the cables. Should be finished by June 15.