T1 status and plans Fabrizio Ferro – INFN Genova 5 th Technical Coordination Workshop February Bogis-Bossey

T1 at Point 5 F.Ferro - T1 status and plans

Maintenance & commissioning Already done ◦ Repaired all CSC’s damaged during extraction ◦ Checked CSC alignment (Dmitry) ◦ Readout  Replaced out-of-sync VFAT’s  Extensive check of ground connections To be done ◦ Readout  Replace VFAT’s with bad occupancy patterns  Replace position sensors and radiation monitors ◦ Commissioning  Test fibers, DAQ, etc. F.Ferro - T1 status and plans

Installation tools upgrade The procedures for insertion and extraction of T1 have been upgraded : ◦ last (first) ~1 m of insertion (extraction) will proceed with parallel and controlled (via screws) movements of the two half-arms ◦ load and tension on the assembly monitored through load cell ◦ relative z position of two half arms monitored and constrained mechanically by new temporary extensions (Roman Stefanovitch) F.Ferro - T1 status and plans Successful simulation of insertion/extraction of one arm as in real life (fast and safe)

HF+ water leak on Feb.1 st, 2014 Water leak (likely) caused by a faulty connector inside the Wiener Maraton power supply A Technical Incident Panel has been set up by Wolfram (2 meetings already done) ◦ see minutes for details on investigation and actions All 4+1 T1 power supplies need to be repaired/changed asap to reinstall them and to allow surface tests and commissioning (1 needed) F.Ferro - T1 status and plans

Installation: outlook Manpower ◦ CMS: 2-3 CMS people with experience (Dmitry+2) ◦ TOTEM: T1 crew Timing ◦ Truss installation CMS* ~6h ◦ 2 ¼ on platform CMS* ~4h ◦ Temp. services + Commissioning TOTEM 1.5d (more if viable) ◦ Cage-truss alignment CMS* ~4h ◦ Insertion, fastening, check CMS* ~1d F.Ferro - T1 status and plans Extrapolation from operations Operations can be faster now: services already installed, more experience, more tools * In case, 1-2 TOTEM technicians to support/replace CMS ones.

Looking forward to... F.Ferro - T1 status and plans...reinstalling both T1’s during LS1