Safety assessment for HL-LHC deliverables Challenges and innovation

1. Safety assessment for HL-LHC deliverablesChallenges and innovation HL-LHC Safety Office Christelle Gaignant, Thomas Otto, Nora Grada

2. Outline • Safety actors in a project @CERN • The context for HL-LHC • HL-LHC SafetyAssessment • Conclusions Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

3. Safety actors in a project @CERNA not exhaustive, simplified overview  • Safetyfollows the hierarchical line • Safetyresponsibilitiescannotbedelegated Project leader Project Safetyofficer DepartmentHeads DepartmentalSafetyofficers Workpackage leader Workpackage leader Workpackage leader Group Leader Group Leader Group Leader Group Leader PL isresponsible for Safety withinhis Project Responsible for Safety of projectsundertheirresponsibility Responsibilitiesshall in no way replace the Safetyresponsibilities of the line management of the Departmentsinvolved Regulator for CERN Project Correspondents (Conventionnal and RP) HSE Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

4. The context: a projectwith « major Safety implications » • HSE classified HL-LHC as a projectwith "major Safety implications" • HSE actions as a result: • Edit the « LaunchSafety Agreement » : list of (conventional) safetyrules to complywith for each item • List of safetychecks • Issue the HSE safety clearance Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

5. The context: the deliverables • HL-LHC deliverables are of differentkinds, amongstwhich : • Objectsbuilt for HL-LHC specificneeds, and no particularsafety challenges, • Innovative, one of a kind, neverseenbeforeobjects • Eachdeliverablemaybe: • A CERN design, manufacture and assembly • From the industry • From in-kind contributions • A mix of above Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

6. The context: The LaunchSafety Agreement issue LSA HL-LHC 1 LSA  1 item / system 40+ pages document LSA Is it efficient? Is Safety a full-time editing job? Whatis the added value for the Organisation? LSA LSA LSA nLSAs for the HL-LHC project Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

7. A new approachThe System SafetyAssessment The PSO office proposed to HSE: Conventionalsafetyrequirements Hazard register SSA SSA SSA UNIQUE document to reference the (conventional) rules Editor: HSE 150+ hazards/dangerous situations Matchingwith the Rules Including Radioprotection Editor: PSO AdaptedfromT. Otto’swork for FCC n System SafetyAssessmentforms Editor: Workpackageengineer, w/PSO support w/ customisedhazardlist Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

8. HL-LHC System SafetyAssessmentContent Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

9. HL-LHC SafetyAssessmentProcess - Responsibility The riskowneris the project (WP) The PSO supports the WP and liaiseswith HSE HSE defines the mSistatus Final approval of SSA by: HSE-OHS Workpackage leader Group Leader HL-LHC Project leader Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

10. HL-LHC SafetyAssessmentformScalability – Equipment: TCLD collimator Scope of the SSA The assembledcollimator, the vicinity of cryoequipment. Courtesy: I. Lamas García, R. IllanFiastre Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

11. HL-LHC SafetyAssessmentformScalability - Assembly: Crab-cavity cryomodule Scope of the SSA The assembled cryomodule SPS Prototype of DQW Cryomodule duringits installation in 2017 (credits: CERN CDS) Cryomodule sub-systems Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

12. Q1 HL-LHC SafetyAssessmentformScalability – Facility: String Test in SM18 Q2a Q2b Test stand to study and validate the collective behaviour of the differentsystems of the LHC Inner Triplet Region Q3 ~60 m CP D1 DFX Magnets, magnet protection, cryogenics, superconductinglink, magnetpowering, vacuum, interconnectionbetweenmagnets and the SC link, and alignment. Specificity of the host infrastructure SM18 Etc. SSA SSA Scope of the 2 top SSA SSA LHC 1 safetyassessment per system Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979 Courtesy: N. Grada

13. Conclusions • The SSA processis time-saving, cost-effective and allows the appropriate allocation of ressources. • It iswelladapted for large-scaleprojects. • The projectiswilling to share the method. Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

14. Thanks for you attention Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

15. Abstract The High Luminosity LHC (HL-LHC) is an upgrade of the LHC to achieveinstantaneousluminosities by a factor of five largerthan the LHC nominal value, therebyenabling the experiments to enlargetheir data sample by one order of magnitude comparedwith the LHC baseline programme. The HL-LHC projectdeliverablesrankfrom standard industrialequipment to innovativeunprecedented technologies, involvingexternalpartners in the industry and from Collaborations. The HL-LHC Safety Office developed, in collaboration with CERN HSE unit, a systematic and scaledapproach of riskassessments. Existingrisk identification and evaluationprocesses have been revised and updated to ensure an optimized use of resources to target the safety challenges of this large-scaleproject. This talk willpresent the riskevaluationprocess, as well as the workflow and information exchange between the differentstakeholders. A particular attention isalsopaid to documentation and itsarchiving to allowaccess and retrievalduring the design, installation, commissioning and operation of the different hardware. The scalability of the methodwillbeillustratedwithexamplesfrom a givenequipment to an assembly of components and up to a facility. Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

16. References • HL-LHC System SafetyAssessment Template, Jose GASCON, Thomas OTTO, Christelle GAIGNANT, Nora GRADA – EDMS 1361970 • SafetyRequirements for HL-LHC (Conventional aspects), Christelle Gaignant, Thomas Otto, Nora Grada, Jose Gascon – EDMS 1827925 Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979

17. The context: the deliverables • HL-LHC has differentkinds of deliverables • Activities (manufacturing, assembly, etc.) • New buildings (surface and underground) • Supply of standard equipment • Innovative, one of a kind, neverseenbeforeobjects • Objectsbuilt for HL-LHC specificneeds, and withoutspecificsafety challenges. Christelle Gaignant – ITSF2019 @ESS Lund – EDMS 2153979