1. LHC ACCESS SYSTEM 1Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Access System during the LHC Injection tests P. Ninin, S. Grau - TS/CSE Workshop Chamonix XV – 27 January 2006

2. LHC ACCESS SYSTEM 2Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Agenda Introduction Motivation Requirements Interlock chains CCC Situation after the tests Planning Conclusions

3. LHC ACCESS SYSTEM 3Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Motivation Protect personnel against radiation hazard during the tests -Access to underground areas around Points 8 and 7 (and the arc in between) must be fully operational during the test -Access doors must be interlocked to disable beam in a failsafe way if safety conditions are violated. Test the access control and safety system -Procedure: patrol, nominal operation, incident management -Access Equipment -Interlock chains -Control system

4. LHC ACCESS SYSTEM 4Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Access requirements Temporary interlocked gate in Sector 7-6: -To allow safe continued access to 6-7 the gate should be placed at 800 m from IP7(RP study). Dead zone or confined space -The machine access point at Point 7 (PM76) shall be operational. The machine access point at Point 8 (PM85) shall be operational. The access point between the experimental service cavern and the LHCb experiment shall be operational and the shield wall in place (PZ85) Temporary interlocked gate in Sector 8-1

5. LHC ACCESS SYSTEM 5Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Access system Injection Test zones limited to points LHC 7 & 8 Deployment -Access safety system at points 7 & 8 -Access control system at points 7 & 8 -CCC control infrastructure -Redundant cable loop -Patrol LHC 7LHC8CCC Personnel Access16 Material Access15 Sector door811 End of Zone door213 Shielding walls14 racks12206 sectors513 CCC computers10 Total307216

6. LHC ACCESS SYSTEM 6Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Installation Underground access system equipment in sectors 7 / 8 shall be installed before the hardware commissioning. Pits head access equipment could be installed during cool down, expected lower traffic. During the PM installation the PZ will remain operational. Estimation of 500 people that needs the new access card

7. LHC ACCESS SYSTEM 7Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 CCC

8. LHC ACCESS SYSTEM 8Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Interlock Chains G. Roy

9. LHC ACCESS SYSTEM 9Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Interfaces Access Safety Central Controller Access Safety LHC8 Controller Access Safety LHC7 Controller 18 KV TED87765 MBIAH 8783M MSIB 8813M BIW BIC SPS Access Access safety network

10. LHC ACCESS SYSTEM 10Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Authorisation Authorisation during the tests will be given by the DSO or the GLIMOS, final decision by OP Enrolment campaign and new identifier distribution -New identifier included in the dosimeter Biometry Enrolment Personal Dosimeter with identifier

11. LHC ACCESS SYSTEM 11Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Access Procedure Before -If necessary access control with restricted list -Patrol During (17 days) -Access closed and interlocked -If access necessary : LHC access mode RESTRICTED After -Supervised Radiation Area Access doors NOT required to define these limits. Personal Dosimeter required -New LHC access system will be operational in 7 & 8

12. LHC ACCESS SYSTEM 12Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Planning Underground installation ready Surface installation ready

13. LHC ACCESS SYSTEM 13Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Follow-up tasks and linkmen LACS installation and commissioning -> L. Scibile, F.Bonthond LASS development -> T. Ladzinski LASS installation and commissioning -> T. Ladzinski Cabling -> J. F. Juget Equipment Integration -> S. Di Luca Interface with BIC and SPS access safety system -> T. Ladzinski Redundant cable loop installation and commissioning -> M. Munoz LACS, LASS, Cable Loop and Global Access tests -> L. Scibile, T. Ladzinski Testing procedures and team definition -> L. Scibile, T. Ladzinski Patrol and operational procedures definition -> P. Ninin Access cards/dosimeters fabrication, enrolment (500 p) -> L. Scibile, R. Nunes Training to CCC operators -> P. Ninin INB documentation -> E.M. Poggioli Document objectives, requirements, linkmen, milestones, operational modes acess vs. test modes for the Injection Tests from access point of view -> S.Grau Coordination – S.Grau

14. LHC ACCESS SYSTEM 14Authors: P, Ninin, S. Grau & LHC access team EDMS: 697682 Conclusions Goals -Ensure personnel safety (radiation hazards) during the tests -Test the access system itself More particularly the interlocks and supervision part Installation of access system equipment and necessary service is scheduled and organised to achieve this goal. 20 % of the final LHC access system -Little specific -Operational procedure to be prepared and tested Access system for LHC Injection Test will be coordinated by S.Grau.