Status of the new BGI Beam Gas Injection

Status of the new BGI (Beam Gas Injection) of the new BGI (Beam Gas Ionization) Jose A. Ferreira Somoza (TEVSC) 23/02/2021 PS-MPC #28 1

Situation q q q q Equipment installed in the machine Test valve irradiation (Lifetime <200 Gy). Degradation higher setpoint Layout drawings approved ECR in preparation (integration already discussed) Commissioning finished (air) Issue with Ar bottles (order missed by the system) To install as soon as they are received. Final leak 23/02/2021 check PS-MPC #28 2

Operation Open PS ring synoptic (double click) Ø View Equipment Gaz injection… To show the two BGI Ø Conditions to start injection: Ø Ø Sector valves open Ø Pressure ok in BGI (VGP. BGI. PR 90. 82 or VGP. BGI. PR 90. 84) and in vacuum sector (PR. VGP 83) It can abort injection Ø Open BGI synoptic (double click) 23/02/2021 PS-MPC #28 3

Operation All conditions OK BGI two green strips Wait stabilization Click Start Injection ends clicking stop or after 4 h (timeout) ü Increase or decrease setpoint ü Low setpoint does not open the valve ü 140 maximum value ü Check pressure value 23/02/2021 PS-MPC #28 4

Summary BGI System is commissioned q Argon bottles to be installed in the machine q First injections in collaboration with TEVSC (connection to CCC) q ECR to be finished and circulated for approval (fait accompli) q 23/02/2021 PS-MPC #28 5