Outline

1. Hazards and Safety in ALICE -Ways to reduce the risksPresentation at the ALICE Club,Monday, December 1st, 2003by Marc Tavlet, GLIMOS

2. Hazards and risks review (general) Safety Procedures Safety issues during design + Identified safety issues Risks during - underground installation - surface pre-installation - commissioning - operation - maintenance Ways to reduce these risks Safety teams, responsibilities in matter of safety Outline

3. Hazards and Risk review at CERN • Radiation ionizing and non-ionizing (lasers, EM-fields) • Electricity HV but also LV • (Flammable) gases, Chemicals (liquids), Materials (solids) to be considered both for toxicity and… • Fire risks (materials, electricity…) • Mechanical integrity (incl. seismic events, pressure vessels…) • Falls and slips, falling objects • Confined spaces • Handling (= transport, but also “hand-ling”) • Road traffic

4. Initial Safety Discussions (ISD) ;Safety aspects have beenchecked from the design. The Glimos keepsongoing contactswith PLs, and informs about safety rules (+ safety link-persons). Safety issues, whenever appropriate, are addressed in Production Readiness Reviews (PRR) (ongoing) Final check when detectors arrive at CERN, Safety Inspectionswith TIS. Safety procedures

5. Mechanical safety Structure integrity (including during seismic events) Pressure vessels, piping, Lifting and handling equipments Flammable gases or mixtures Electricity HV, proper protection LV power, fuses Grounding… Non-complying materials with regard to IS-41 Risks of toxicity (Be) Risk of fire (flammability, toxicity and corrosivity of fire gases) Safety Issues during Design

6. EP Division Leader ; give the resources Technical Coordinator + GLIMOS ; inform + check Project Leaders ; inform + check Every designers ; respect the design rules, incl. all TIS rules ( TIS.CERN.CH/Documents ) They are all assisted by other safety officers (RSO, FGSO) TIS specialists + safety link-persons Safety Issues during DesignResponsibilities and roles in matter of Safety

7. Mechanical integrity (incl. Seismic events) beware of chocks ! Falling objects (from heights, scaffoldings, cranes…) secure portable tools and objects define – and respect ! – safety perimeters Falls (from heights) use harnesses do not work on a ladder Slips ← dust, grease, oil… on the ground Handling (= transport, but also “hand-ling”) Road traffic Risks during Surface Pre-Installation

8. Risks during Underground Installation • Radiation light from lasers (+ calibration sources ?) define and respect safety perimeters • Mechanical integrity (incl. Seismic events) beware of chocks ! • Be vacuum-chamber (toxicity) ; beware of chocks and scratches • Falling objects (from heights, scaffoldings, cranes…) secure portable tools and objects define – and respect ! – safety perimeters

9. Falls (from heights) use harnesses do not work on a ladder Slips ← dust, grease, oil… on the ground tidy the work place Handling (= transport, but also “hand-ling”, manipulation) use individual protections Confined spaces (inside the L3 magnet, between L3 and dipole…) attend the related training and respect the rules Noise Risks during Underground InstallationCtd

10. Radiation Light from lasers, EM-fields Electricity HV but also LV ; use appropriate equipment use and respect signalizations (Flammable) gases, Chemicals (liquids) Fire risks (materials, electricity…) Mechanical integrity (beware of chocks !) Falls (from heights) and slips (on the ground), falling objects Handling (= transport, but also “hand-ling”) Confined spaces Road traffic Risks during Commissioning

11. →During operation, the access to UX-25 will be forbidden →Access to the counting rooms in PX-24 allowed →Access to the ALICE control room trough SX-2 Fire risk (in UX-25 or PX-24) ; procedures will be written Slips (on the ground), falling objects Electricity (mains, 220V) Night shift (never-work-alone rule) Road traffic Risks during Operation

12. About same risks as during commissioning: Radiation Light from lasers, EM-fields + activation ! Electricity HV but also LV (Flammable) gases, Chemicals (liquids) Fire risks (materials, electricity…) Mechanical integrity (beware of chocks !) Falls (from heights) and slips (on the ground), falling objects Handling (= transport, but also “hand-ling”) Confined spaces Road traffic Risks during Maintenance

13. Ways to reduce the risks on the field • Proper information ←Supervisors, GLIMOS, TIS • Proper training ←TIS, GLIMOS, HR-ED • Adequate preparation of work • Presence of safety team • Respect the rules • Respect safety signs … Safety culture = “think safety, work safely”

14. GLIMOS = Group Leader in Matter of Safety (and deputy) checks the design and co-ordinates all safety aspects. Disseminates and collects the info related to safety. FGSO = Flammable Gas Safety Officer, checks the design and installation of (flammable) gas distribution. RSO = Radiation Safety Officer, checks the safety related to ionizing and non-ionizing sources, including lasers. TSO’s = Territorial Safety Officers (and deputy), check the daily safety aspects and installation at Pt-2 and in LHC. Safetylink-persons for each detectors. Safety Team in ALICE

15. TSO Pt.2 + assistant Safety Organization Who reports to whom in matters of Safety ALICE Tech. Coord. EP-DL + DSO normal report, in case of definition of work major conflict GLIMOS + deputy EST-DL + DSO FGSO, RSO INB link-pers. Safety link-pers. Safety Coordinator Outside contractor Staff worker

16. GLIMOS Marc Tavlet /EP-AIO 73717 Deputy GLIMOS Hans Taureg /EP-AIO 16-0359 FGSO Charles (Ray) Gregory /EST-LEA 16-3504 RSO Marc Tavlet /EP-AIO 16-0217 TSO for Pt.2 Sebastien Evrard /EST-LEA 16-4821 Deputy TSO Fernando Dalla Santa /EST-LEA 16-3131 TSO for LHC Michel Decombaz /EST-IC 16-0430 INB link-person J-P.Vanuxem /EP-AIO 73890 Safety link-persons … thank you. Safety Organization Who’s who