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LHC Performance Workshop - Chamonix 2009

2–6 Feb 2009
Chamonix
Europe/Zurich timezone
DISCLAIMER “The Chamonix workshop was an open exchange of views and opinions. All the presentations made at the workshop are available here. The views expressed in individual presentations do not necessarily represent those of the CERN management.”

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Session

Session 02 - Safety

S02
2 Feb 2009, 17:00
Le Majestic (Chamonix)

Le Majestic

Chamonix

Presentation materials

  1. 8. Consequences for safety of personnel following S34
    Ghislain Roy
    02/02/2009, 17:00
    Following the accident in Sector 34, some immediate and short term restrictions on personnel access have been put in place. Some restrictions on specific operations have also been decided. Some of these restrictions went much beyond the previously agreed rules for access and powering but have been decided by precaution pending further investigation of the event. In the light of lessons learnt...
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  2. 85. Safety Organisation
    John Robert Etheridge, Rudiger Schmidt
    02/02/2009, 17:25
    Safety has been an integral part both for the installation and hardware commissioning phases of the LHC The objective of this presentation will be to out line the new structure that is in place, the general organization, introduce the key players, provide an insight into the safety documentation that is available to help everyone, explain what is required to carry out any form of...
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  3. 97. Access & LACS/LASS
    Laurette Ponce (Unknown)
    02/02/2009, 18:10
    The LHC access system has been progressively put in operation starting from Spring 2008 and has been used in different configurations during the LHC commissioning phases (powering tests, beam operation and shut-down). Based on the experience gained during these phases, several modifications have been requested for improving personal safety as well as operational efficiency for the next run....
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  4. 98. Safety systems (AL3) and systems relevant to Safety
    Steve Hutchins
    02/02/2009, 18:35
    The AL3 systems are basic life protection and are especially important during the shutdown; there should be no point in the LHC underground areas in which a person is not or cannot be informed of the dangers around him when they exist and so take appropriate action. The implantation of the different detection and alarm systems will be reviewed and their performance and reliability examined....
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  5. 12. Possible scenarios for a safety upgrade of the ventilation system
    Joaquin Inigo-Golfin
    02/02/2009, 19:05
    This paper/presentation describes the existing LHC ventilation (HVAC) system, the design principle followed for the LEP Project and the modifications implemented for the LHC Project. A discussion on possible referential standards to compare the existing system with is presented and possible axes for its improvement, based on these referentials, are discussed. Finally, some recommendations are...
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  6. 86. Emergency preparedness
    Enrico Cennini
    02/02/2009, 19:30
    On September 19th 2008, a technical fault was at the centre of a sequence of events which hampered the performance of certain equipments of the LHC 3-4 sector. Once the first effects of this sequence of events were detected, the behaviour of the CERN staff confronted to this complex and critical situation became the centre of the risk control process. During such a downward spiral the...
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