1. VAC – CTRL SYS 8 Feb 2012

2. VAC : MSRC equipment

3. Central area links, to be discussed Ion Tmp aux

4. Notes on central area vacuum changes IB tower: + a turbo group at beginning of MC pipe (move the valve? no) DT cryotrap: updated cryotrap (new aperture size 200-250mm). Normally we shall integrate its new rack in the general control system. IB Brewster: Brewster or cryotrap. to be discussed Towers upper parts : + the possibility of install an Ion pump (For the control, could use the P33 drive) Towers lower parts: 2 turbo pumps and 3 Ion groups, (plus a service pump for first evacuation and service, normally off, completed with gauge and valves.) These system could be grouped in a single rack (placed where?) or splitted in the relevant tower CC racks (in place of TSP drivers, tbc). The second choice seems better for the operator, give him a complete view of all the systems when in local mode. Minitower: Separated by a glass window. Pumping system completed to get HV. The CC rack shall not be placed in the clean room, a solution should be found to allow the vacuum team operate the system from the clean room. Double orings.

5. Minitower pumps

7. About Crytrap, fix a date for meeting about: Purchase of the 4 valves Discuss the designed charriot for the Input traps installation DN63 ports on 1300mm flanges Metal seals for the prototype test End cryotrap feet mechanical frequency result