1. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas1 Outline ALICE gas systems meeting Outline Introduction Review usage of ALICE gas M&O 2013 Review achievements during 2013 Agree/Review activities and schedule for 2014

2. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas2 Introduction – Working team PH-DT-DI Gas Service Team ALICE Albin Wasem ALICE Frederic Merlet (0.25) Louis-P. De Menezes (0.5) CMS-TOTEM Andrea D’Auria (0.5) LHCb Patrick Carrie (0.5) Steven Pavis (0.25) Coordination R. Guida FSU team Jonathan Dumollard Abdelmajid Laassiri Benjamin P. Marichy Herve Martinati Ace Ordanov (User) Cedric Landraud (also CMS-CO2) Guillaume Lacroix (also CERN Expo) Gas Service Team mandate:  M&O and upgrades of the gas systems for all the LHC experiments: -preventive and corrective maintenance on 30 gas systems -on-call service all along the year (24/24 7/7) – phone 162516  Construction of gas systems for other experiments at CERN (CLOUD, NA62, LINAC4, …)  General support for test beam and equipment belonging to external users.

3. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas3 ALICE experiment and Gas Service Team PH-DT-DI Gas Service Team First contact persons for all issues related to ALICE gas systems during working hours is in charge of: -standard operation -standard maintenance/small modifications -daily check of all systems ALICE A. Wasem 16-0943 If Albin is on holiday or busy: -during working hours  call directly Roberto (16-2146) -outside working hours  call directly on-call service (16-2516) Outside working hours  call directly on-call service (16-2516)

4. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas4 In order to cope with LS1 a significant reinforcement of the team during 2013 was needed: ▫two new users with high experience in the workshop (mechanics and gas systems) ▫many students for short and well defined projects Details:  CERN FTE (and students > 1 year): ▫6.3 FTE: +1.3 wrt 2012  -Ernesto: TTS 50% for gas project  “FSU” (FSU + technical users): ▫5.5 FTE: +1.5 wrt 2012  -Ace: user on ALICE budget -Andrei: user on ALICE budget  Trainees (student < 1 year) ▫1.9 FTE: +1.8 wrt 2012  -4 trainees (3 from Poland, 1 from Canada) -2 summer students -2 children of staff members Working team Gas Service working team

5. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas5 2013 activities can be divided into three main sectors: 1.Standard maintenance of gas systems for the LHC experiments 2.LS1 consolidation program for the LHC experiments 3.Not LHC experiments/support to users LS1 – 2013: Overview PH-DT-DI Gas Service Team  Standard maintenance and LS1 consolidation program constitute the main field of activity  Not LHC experiments and support to users represent about 20% of the activities

6. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas6  ALICE contribution to M&O budget for gas systems: 130+ 28 (2013-LS1 consolidation) kCHF  Total 158 kCHF ALICE gas M&O 2013: on-call Review usage of ALICE gas M&O 2013 Analysis (TRD) Gas supply high flow alarm (Ar, CO2, N2) Power supply (24 V) Pressure regulation valve (TPC) Pump (TPC) Purifier (TRD) Xe recuperation (TRD) Gas supply not ready (EN-MEF) Xe, R134a, SF6, Ar Infrastructure (GS-ASE) GS intervention, Ar-H2 Software (EN-ICE) Communication, TPC On-call service:

7. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas7 On-call service summary ALICE gas M&O 2013: on-call Review usage of ALICE gas M&O 2013 On average only 1.5 h/year/system of downtime (power-cuts and outside events excluded) Intervention are: ▫Equally distributed between experiments ▫Decreasing with time Intervention triggered by:

8. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas8 ALICE gas M&O 2013: material Review usage of ALICE gas M&O 2013

9. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas9 ALICE gas M&O 2013: material Review usage of ALICE gas M&O 2013

10. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas10 ALICE gas M&O 2013: material for gas workshop Review usage of ALICE gas M&O 2013

11. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas11 ALICE gas M&O 2013: FSU resources Review usage of ALICE gas M&O 2013 FSU and users (i.e. Andrey, Ace)

12. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas12 Summary: ALICE gas M&O 2013: summary Review usage of ALICE gas M&O 2013 about 58 kCHF overspending

13. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas13 2013 schedule LS1 – 2013 schedule

14. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas14 LS1 – 2014 schedule More details available on the excel table in agenda 2014 schedule

15. Software upgrade 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas15 EN-ICE is preparing the migration to a new software version (CPC6 & more). The migration requires to (~) completely rewrite the code (PLC+PVSS):  Preparation phase needed to define strategy and milestons Define modules, test logic, … Validation of one/two gas systems covering almost all functionalities Deployment on one experiment (all detectors) Deployment on all the experiments  A complete commissioning will be required (same as it was done at the first start-up of the gas systems)  About one-two week of stop/instability for each detector  Activitiy scheduled from January to April 2014  Resolve remaining bugs without long stop of gas systems - September-October 2014 Main responsible: Steven Pavis Software upgrade

16. 25/04/2014R. Guida, A. Wasem PH-DT-DI Gas16 Software upgrade Main responsible: Steven Pavis