1. Machine operator priorities for Linac 2 and 3 G Bellodi, BE-ABP-HSL G Bellodi, BI- BOSS-2 meeting, 10 June 2015

2. LBE LBS LTB LT LTLLT LTE LALILP Linac 2 Tunnel PS Tunnel (inflector) – Entrance from PSB ITH

3. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 InstrumentsStatusUsageIn layout DBStops beam? comments LI.BCT02 operational Critical for machine setup, operation, MDs yes Yes, through Linac2 SIS watchdog located at several positions along the Linac + TRIC cards acquisition system LI.BCT06 LA.BCT07 LT.BCT10 LT.BCT20 LT.BCT30 LT.BCT40 LTB.BCT50 LTB.BCT60 BI.BCT10 Beam current transformers: intensity measurements

4. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 InstrumentsStatusUsageIn layout DBStops beam?comments LT.BPM10 operational Critical for machine setup, operation, MDs yesno During LS1 the pick ups were replaced with stripline detectors - compatible with Linac4. LT.BPM20 LT.BPM30 LT.BPM40 LT.BPM50 LTB.BPM10 LTB.BPM20 LTB.BPM30 BI.BPM00 BI.BPM10 BI.BPM20 BI.BPM30 Pick-ups: Linac2 to PSB trajectory steering

5. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 InstrumentsStatusUsageIn layout DBStops beam? comments BLM1 operationalMDs no LHC type Moveable devices Not in main control system, BLM2 BLM3 BLM4 BLM5 BLM6 BLM7 BLMs 1, 2 low energy, in tanks, strong shielding

6. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 LTL-LTE measurement lines at Linac exit

7. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 Measurement Lines – LTE Measurement Lines – LTL NameInstrumentStatusUsageIn layout DBStops beam?comments LTE.BCT15Transfo Operational in principle MDs, setupno Not heavily used, most often found not working LTE.MSG10H V? Semgrid (fixed) NameInstrumentStatusUsageIn layout DBStops beam?comments LTS.BCT12Transfo Operational in principle MDs, setupno Not heavily used, most often found not working LTS.BCT14Transfo LTS.MSGV10?Semgrid (fixed) SPEM GM class maintenance needs follow up

8. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 LBE, LBS measurement lines off BHZ40 magnet

9. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 LBE NameInstrumentstatususageIn layout DBStops beam? LBE.BCT64transoOperational MDs, setup, debugging yesno LBE.BCT65TransfoOperational LBE.BCT66TransfoIons / not used LBE.MSGH10SemgridOperational LBE.MSGV10SemgridOperational, pneumatic LBE.MSGHV20SemgridTaken out LBS NameInstrumentStatususageIn layout DBStops beam? LBS.BCT62TransfoOperational MDs, setup, debugging yesno LBS.BCT63TransfoIons/ not used LBS.MSGV50semgridOperational, fixed with rotational degree

10. G Bellodi, BI- BOSS-2 meeting, 10 June 2015

11. Faraday cups NamestatusUsageIn layout DBStops beam? ITL.MFC01Removed Critical for machine setup, operation, MDs No By default, and also in case of motor malfunction ITL.MFC02 operational ITM.MFC01 InstrumentsStatusUsageIn layout DBStops beam? ITL.BCT05 operational Critical for machine setup, operation, MDs no ITF.BCT15 ITF.BCT25 ITH.BCT41 Transformers

12. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 Semgrids NameStatusUsageIn layout DBStops beam? ITL.BSF03HV operational Machine setup, MDs no In case of malfunction of the motor system ITM.BSF04HV ITF.BSF02HV ITF.BSG03HV ITF.BSG04HV ITF.BSG05HV ITH.BSG11HV ITH.BSG15HV 2 pick-ups are installed in the Linac3 inter-tanks: not operational but still installed – could potentially cause a vacuum leak

13. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 Pepper pot Pepper Pot Control Cabinet BEAM Pepper pot plate MCP, PHOSPHOR Mirror Camera InstrumentsStatusUsageIn layout DBStops beam?comments XXX (no official name yet) Installed in April, under commissioning machine setup, operation, MDs no Yes, by default or in case of malfunction Standalone controls, to be integrated

14. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 LIU plans for LBS upgrade replacement of the spectrometer magnet (reuse identical magnets from Linac2) exchange of the power converter (from Linac4) controls modifications to power convertors and beam diagnostics in the part of the transfer line in common with Linac4, to allow simpler line sharing between H- and ions.

15. G Bellodi, BI- BOSS-2 meeting, 10 June 2015 Layout database: Linac2: LI, LA, LTE, LTL missing from layout database - only LT, LTB, BI, LBS, LBE are present Linac3 not present in the database Beam off: Equipment failures that could cause a prolonged beam unavailability mainly related to vacuum leaks or malfunction of pneumatic arms for intercepting devices – SIS watchdog can be modified/bypassed in case of BCT failure in order to resume operation Criticality: Linac3 – very little instrumentation and lack of redundancy  what is there is mostly critical for operation Software: need guaranteed maintenance of BI standalone applications and work towards integration of standalone controls Conclusions