PS/SPS Days

Session

Session 2 - Shutdown Activities in 2005

SE02

13 Jan 2005, 14:00

503/1-001 - Council Chamber (CERN)

Conveners

Session 2 - Shutdown Activities in 2005

• Gianluigi (Chairman) Arduini (AB/ABP)
• Elias (Scientific Secretary) Metral (AB/ABP)

14. What is falling apart in the injector chain

POOLE John (CERN)

13/01/2005, 14:00

Shutdown Activities in 2005

Equipment groups have been asked to propose activities to consolidate their hardware and for each system concerned, a risk analysis has been made and the impact of failures has been evaluated. The method used for the analysis will be explained, a prioritised list of activities will be presented and those which are planned to be carried out will be indicated.

21. What is falling apart in the technical services for the PS&SPS complex

Roberto Saban (CERN)

13/01/2005, 14:20

Shutdown Activities in 2005

Following a request by the DG, early last year, the TS Department made an analysis of the risks associated to the construction and operation of the LHC. It focused on the infrastructures under the responsibility of the Department and singled out a number of items which, if not consolidated, would seriously jeopardize CERN’s ability to complete the LHC project in time. This exercise led...

27. Renovation of the 45-year old PS magnets

Mr Thomas Zickler (CERN)

13/01/2005, 14:40

Shutdown Activities in 2005

The PS main magnet renovation program comprises two phases in which all PS main magnet units will be refurbished. Phase 1 will take place during the long PS shut down in 2005 and foresees the renovation of 40 magnets. The actual state of all magnets has been evaluated and analyzed in order to identify the weakest magnets. These magnets will be removed from the PS tunnel, completely...

24. Reliable and easy-to-use instrumentation for a difficult start-up

Dr Uli RAICH (CERN)

13/01/2005, 15:00

Shutdown Activities in 2005

It is during startup and commissioning of new features in the accelerator that beam instrumentation is mostly needed and it is also during these periods that most of the instrumentation problems crop up. In this talk we will analyze problems that have occurred during the 2004 startup, and try to find reasons for failures and ways to improve in the future. The situation of the PS and...

26. How to get reliable PSB sieve and PS&SPS dumps for 2006?

Roberto Losito (AB-ATB)

13/01/2005, 15:40

Shutdown Activities in 2005

During the last two years of operation the PS internal dumps and the PSB sieve showed a significant diminution in reliability. The availability of one PS dump and of an operational spare is the prerequisite for some modes of operation (e.g. nTOF in parasitic mode of East hall). The PSB sieve is absolutely required for the production of the pilot LHC beam. In the SPS the high energy...

17. Operating the septa beyond their design specs

Mr Jan Borburgh (CERN)

13/01/2005, 16:00

Shutdown Activities in 2005

Recent septa failures will be briefly reviewed, along with a discussion of the spares policy, the role of preventative maintenance and the reformulated consolidation proposal. The importance of passive septa protection devices and well- thought interlocks will be highlighted. The impact from planned or possible future modes of operation will be discussed.

13. The way to fast and "loss-free" SPS kickers

Dr Enrique Gaxiola (CERN)

13/01/2005, 16:20

Shutdown Activities in 2005

After modification in the 2003/2004 shutdown the overall injection kicker rise time was quantified more precisely. The improvements for four-batch LHC type beam injection have not yet been fully reproducible. The present status will be presented and possible further improvements be discussed. An overview of the extraction kicker modifications made to meet the LHC and CNGS requirements...

23. What remains to be done to have ISOLDE fully integrated and REX fully operational?

Dr Mats Lindroos (CERN)

13/01/2005, 16:40

Shutdown Activities in 2005

The ISOLDE REX post accelerator is now fully operational. The top energy of the linac is 3 MeV/U and so far more than 25 isotopes of 12 elements have been cooled, bunched, charge bred and accelerated with the system. The REX system is since 1 January 2004 under the responsibility of the AB department. For an interim period of 3 years the associated cost, both manpower and material,...

25. How can we restart the AD in 2006?

Mr Tommy Eriksson (CERN AB/OP/AD)

13/01/2005, 17:00

Shutdown Activities in 2005

From 2006, the AD will enter a second period of running with improved apparatus and new physics programs at the ATRAP, ATHENA, ASACUSA and ACE collaborations. The required consolidation for a successful restart of the AD in 2006 will be reviewed. Improvements in beam characteristics stability and experiment switching delays will also be discussed.