1. AdV Vacuum system changes, Feb2010 ‘New stations’ generic Layout preliminary Cryotrap_NICryotrap_NE Cryotrap_WI Cryotrap_WE Cryotrap_DT ? Cryotrap_IB ? Turbo_PR Turbo_SR Remote_scroll 300mN 300mW Ions

2. AdV Vacuum system changes, Feb2010 ‘NDRC option b’ Layout Preliminary Cryotrap_NICryotrap_NE Cryotrap_WI Cryotrap_WE Cryopump SR? Cryopump PR? Remote_scroll 300mN 300mW Ions DN? As a different with respect to present, the Link Valves shall close automatically to protect the vacuum inside tubes/towers

3. Station Turbo_PR or Turbo_SR, preliminary Turbo, to be purchased, normally with controller on board, rs232 necessary to visualize parameters Automatic valve with position indicator 2 gauges, to be purchased, normally same to the ones we have, but not necessarily Automatic valve with position indicator To the remote scrolls Tower links PI PE

4. Ions, preliminary Could be grouped near IB, DT, MC and also distributed (An option is to remove one TSP pump (P32) and put one Ion pump on that port). In alternative two additional Ion groups could be installed on two links, for instance near BS. 2 Ion pumps, 1 controller, for instance Varian starcell 500 + DUAL per pompe ioniche: RS232 RS422 RS485 ETERNET Manual valve with position indicator 2 gauges, (PI+PE) to be purchased, normally same to the ones we have, but not necessarily manual valve with position indicator Tower links PI PE

5. Centralized scrolls, preliminary Scrolls, to be purchased, could have rs232 Automatic valves with position indicator 3 PI gauges, to be purchased, normally same to the ones we have, but not necessarily TowerIBTowerPR TowerBS TowerWITowerSRTowerNI TowerDT In parallel to V91, tbc ? PI

6. Cryotraps_DT/IB or Cryopumps_SR/PR, preliminary tbc

7. Cryotraps 1of2, preliminary 2 systems like this one per each trap Manual valve 200CF with position indicator 2 gauges to be purchased, normally same to the ones we have, but not necessarily manual valve with position indicator Large valve / tower link Turbo, to be purchased, normally with controller on board, rs232 necessary to visualize parameters Automatic valve with position indicator 2 gauges Automatic valve with position indicator Local scroll and also remote scroll? Automatic valve with position indicator existing large valve, to be linked to the control PE RGA PI PE 2 TSP pumps Manual valve with position indicator New or from 0m/3000m? Not from NI/NE...

8. Cryotraps 2of2, preliminary. Cryogenic controls, pid for level control and external tank Electronics driver to be read (tbc) by remote, normally with a few low level output or rs232 or other Automatic proportional valve, with position indicator, tbc Automatic valve to be linked to the temp control existing large valve, to be linked to the temp control Level 1 External Tank LN2 Electronics driver to be read by remote, normally with a few low level output or rs232 or other Level 2 PID PID level regulator to be read by remote, normally with a few low level output or rs232 or other. Could retransmit the level and valve status Temperature Some temp readouts to be acquired. The controller will have relays to close also valves in case of high temp alarms

9. Double oring on bottom flanges. From the point of view of control system, it is one additional gauge per tower (pirani) PI CF16, to be metal sealed in case of helicofles Double orings on end tower viewports too

10. 300m N and W, preliminary 2 TSP pumps, 2 controllers. Manual valve with position indicator, existing 2 gauges, (PI+PE) to be purchased, normally same to the ones we have, but not necessarily manual valve with position indicator 3km tube, 300m from input PE PI

11. Turbo-booster at the existing tube stations 0m, 600m,... (preliminary) Smaller turbo, to be purchased, normally with controller on board, rs232 necessary to visualize parameters Existing turbo pumping group V21, V22, P21, P22, G21, G22 To the scroll 3km tube station 0, 600,... PI