GIF++ gas systems 11/07/2014Ernesto, Roberto PH-DT-DI gas service1

 neutral gases: tot 9 lines ▫Ar, CO2, N2, He, SF6, CF4 and 3 spare pipes ▫Distribution panels: 4 gas service area + 1 preparation zone  flammable gases or gases with very low vapour pressure: tot 6 lines ▫iC4H10, CH4, Ar/H2(optional), C2H2F4 and 2 spares. Lines and room heated. ▫Distribution panels: 1 gas service area (flammable gases)  1 normal exhaust  1 exhaust for potentially flammable mixtures 11/07/2014Ernesto, Roberto PH-DT-DI gas service2 Gas supply

 At full capacity the gas mixing zone will contain ▫6 mixing racks ▫3 closed loop gas systems ▫2 analysis racks ▫1 control rack ▫5 spare racks  Gas analysis: ▫1 O2 and H2O analysis rack (LHC design: automatic scan between all gas streams selected. ▫Gas chromatograph will be integrated in the O2-H2O analysis rack. ▫1 Infrared analysis rack for monitoring iC4H10 concentration in cosmic trigger. ▫Hardwired interlock signal to stop the system will be send in case problem (DSS) 11/07/2014Ernesto, Roberto PH-DT-DI gas service3 Gas service area

 Start-up version: ▫2 mixing racks (cosmic and beam trigger) ▫1 closed loop gas systems (cosmic trigger ?) ▫2 analysis racks ▫1 control rack 11/07/2014Ernesto, Roberto PH-DT-DI gas service4 Gas service area Construction procedure/design as for LHC gas systems

Gas mixture distribution: Each distribution panel: 6 supply (outer diameter 8 mm) and 6 return (outer diameter 10 mm). The gas distribution is divided in: ▫ panels for neutral mixtures (type A) ▫ panels for mixtures that might contain flammable gases (type B). Gas service area ▫6 panels type A ▫2 panels type B Irradiation bunker ▫6 panels type A ▫2 panels type B Preparation area ▫3 panels type A ▫1 panels type B 11/07/2014Ernesto, Roberto PH-DT-DI gas service5 Gas mix distribution Construction on-going

11/07/2014Ernesto, Roberto PH-DT-DI gas service6 Gas mixers  Remote control and monitoring.  All info available on DIP through GCS and G pp CS

11/07/2014Ernesto, Roberto PH-DT-DI gas service7 Gas distribution panels

Gas supply panel neutral gases 80 cm x 40 cm x 35 cm IR CL2CL1CL3 Spare sup Gas supply panel flammable gases 80 cm x 40 cm x 35 cm sup 11/07/2014Ernesto, Roberto PH-DT-DI gas service8 mix sup Mix1Mix2 AnalCtrl Mix3 Spare sup Spare mix RPC1RPC2 TGC1 Spare sup mix Mixture distribution panels 60 cm x 30 cm x 35 cm Gas service zone – final layout iC4H10, R134a, SF6 nC5H12, CH4, CO2 Detection nC5H12 Detection CH4 Detection iC4H10

Gas supply panel neutral gases 80 cm x 40 cm x 35 cm IR CL2CL1CL3 Spare sup Gas supply panel flammable gases 80 cm x 40 cm x 35 cm sup 11/07/2014Ernesto, Roberto PH-DT-DI gas service9 mix sup Mix1Mix2 AnalCtrl Mix3 Spare sup Spare mix RPC1RPC2 TGC1 Spare sup mix Mixture distribution panels 60 cm x 30 cm x 35 cm Gas service zone – by October iC4H10, R134a, SF6 nC5H12, CH4, CO2 Detection nC5H12 Detection CH4 Detection iC4H10

11/07/2014Ernesto, Roberto PH-DT-DI gas service10 mix sup Preparation zone– final layout iC4H10, nC5H12 Detection nC5H12 Detection CH4 Detection iC4H10 Mobile head

11/07/2014Ernesto, Roberto PH-DT-DI gas service11 mix sup Preparation zone– by October iC4H10, nC5H12 Detection nC5H12 Detection CH4 Detection iC4H10 Mobile head

11/07/2014Ernesto, Roberto PH-DT-DI gas service12 Irradiation bunker– final layout TGC – nC5H12 iC4H10, nC5H12, CH4, R134a, SF6 iC4H10, nC5H12, CH4, R134a, SF6 Detection nC5H12 Detection CH4 Detection iC4H10 Mobile head

11/07/2014Ernesto, Roberto PH-DT-DI gas service13 Irradiation bunker TGC – nC5H12 iC4H10, nC5H12, CH4, R134a, SF6 iC4H10, nC5H12, CH4, R134a, SF6 Detection nC5H12 Detection CH4 Detection iC4H10 Mobile head

11/07/2014Ernesto, Roberto PH-DT-DI gas service14 Conclusions – start-up version First version to start-up the facility: 1.20 distribution panels 2.Simplified version of control rack (basic functionality like connection to remote pvss interface for recording flows, gas systems status, …) 3.2 gas mixing racks for the fixed installations (beam and cosmic trigger setups). Any additional mixer for users will cost about 15 kCHF (not included in the present list). 4.1 IR analysis rack (needed to operate cosmic trigger gas system). 5.1 analysis rack (O2+H2O+ gas chromatograph). 6.1 closed loop gas system.

R. Guida CERN/PH-DT-DI15 Small recirculation systems Two small systems developed:  Prototype used at GIF (2003)  New simplified version for lab R&D ( ) 26/6/2014

11/07/2014Ernesto, Roberto PH-DT-DI gas service16 Gas systems – future upgrades Many possibilities for future upgrades to be discussed with users for resources: 1.Upgrade control rack for more units (mixers, analysis, re-circulation systems, … ) 2.Additional IR analysis rack for second mixer using flammable gas 3.3 mixers for users (15 kCHF each) 4.3 new gas recirculation systems for users 5.Install more distribution panels (?)