‘New stations’ generic Layout Preliminary, NDRC or MSRC? AdV Vacuum system changes, Feb2010 ‘New stations’ generic Layout Preliminary, NDRC or MSRC? Cryotrap_WE 300mW Cryotrap_WI Ions Ions Ions Cryotrap_NI Cryotrap_NE 300mN Turbo_PR Ions Cryotrap_IB ? Turbo_SR Cryotrap_DT ? Ions Remote_scroll

‘NDRC option b’ Layout Preliminary AdV Vacuum system changes, Feb2010 Cryotrap_WE 300mW Cryotrap_WI Ions DN? Ions DN? Ions DN? Cryotrap_NI Cryotrap_NE 300mN Cryopump PR? Ions As a difference with respect to the present layout, the Link Valves shall close automatically to protect the vacuum level reached inside tubes/towers (active safety loops) _PR suspension can be dismounted? If not... _ bench towers height /gas load shall increase, difficult to use ‘helicoflex’ - traps Cryopump SR? Ions DN? Remote_scroll

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

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. Tower links Manual valve with position indicator 2 Ion pumps, 1 controller , for instance Varian starcell 500 + DUAL per pompe ioniche: RS232 RS422 RS485 ETERNET PE 2 gauges, (PI+PE) to be purchased, normally same to the ones we have, but not necessarily PI manual valve with position indicator

Centralized scrolls, preliminary TowerIB TowerPR TowerBS TowerWI TowerSR TowerNI TowerDT ? In parallel to V91, tbc Automatic valves with position indicator PI 3 PI gauges, to be purchased, normally same to the ones we have, but not necessarily PI PI Scrolls, to be purchased, could have rs232

Cryotraps_DT/IB or Cryopumps_SR/PR, preliminary To be defined

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

Cryotraps 2of2, preliminary Cryotraps 2of2, preliminary. Cryogenic controls, pid for level control and external tank Pressure 1 Some temp readouts to be acquired. The controller will have relays to close also valves in case of high temp alarms Temperature Automatic valve to be linked to the temp control existing large valve, to be linked to the temp control Pressure signals (2) , normally 4-20mA, to be recorded Pressure 2 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 Level 1 External Tank LN2 Electronics driver to be read by remote, normally with a few low level output or rs232 or other PID Electronics driver to be read (tbc) by remote, normally with a few low level output or rs232 or other Level 2 Comments: add readouts of LN2 tanks pressures Automatic proportional valve, with position indicator, tbc

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

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

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

Other changes (preliminary): Link valves remote operation more reliable Monitor compressed air level at tube stations Monitor ups status at tube stations, tbc poimettere su file xls Integrate RGAs? Normally not convenient, but currently use remotizers/rs485 and data storage is not well organized