Conveners
Session 02 Shutdown 2012 (Part 1)
- Simon Baird (Chair)
- Katy Foraz (Scientific Secretary)
-
Dr Mirko Pojer (CERN)24/01/2011, 17:00The key driver of the long 2012/13 shutdown is the Consolidation of the 13 kA splices. Once the machine will be back to operation, the increase of energy to 7 TeV should be possible. Are all circuits and systems ready for 7 TeV operation? This talk will focus on what else could limit LHC high energy operation and how we can know that in advance. A period of dedicated testing at the end of...Go to contribution page
-
Stefan Roesler (CERN)24/01/2011, 17:25The residual induced radio-activity in the LHC underground areas in 2012 will be estimated (assuming 200 days of high intensity proton operation in 2011). These estimates will be compared with the levels that would be expected in 2013 (assuming 200 days of high intensity proton operation in both 2011 and 2012). With these estimations some consequences of delaying the shutdown from 2012 to...Go to contribution page
-
Paolo Fessia (CERN)24/01/2011, 17:40In the frame of the next long shut-down of the LHC, it is foreseen to intervene on all the 13kA interconnections in order to guarantee the necessary margin and redundancy to provide safe LHC operation at 7 TeV. In this talk we will provide an overview of the development work performed in 2010, the current technical solution and validation test results, and the remaining work to be performed in...Go to contribution page
-
Francesco Bertinelli (CERN)24/01/2011, 18:05The Splices Task Force has worked in 2010 to prepare the necessary interventions for 7 TeV operation. The design solution for consolidating the main interconnection splices is well advanced. The required activities to implement it are described, highlighting working assumptions, missing resources and schedule considerations. Progress has also been made in assessing other splices, 6 kA praying...Go to contribution page
-
Dr Vincent Baglin (CERN)24/01/2011, 18:40During the next long shutdown, the majority of the 557 LHC beam and insulation vacuum volumes must be vented and opened. The activities proposed by the Vacuum, Surfaces and Coatings Group will be elaborated, including their implications for other Groups, together will an estimation of the extensive VSC workload that is generated by other activities eg splice consolidation, new collimators and...Go to contribution page
-
Vittorio Parma (CERN)24/01/2011, 19:05The first part of the collimation upgrade plan features the installation of 4 collimators in the 2 DS of point 3, in addition to the upgrade of the existing collimation system. What makes this upgrade so special is that for the first time collimators will be placed within the continuous cryostat of the LHC sectors. For this purpose, 16 main dipoles and 8 main quadrupoles will have to be...Go to contribution page
-
Olivier Pirotte (CERN)24/01/2011, 19:30The operation of the cryogenic systems during the first two years at half of the nominal energy has highlighted a number of required consolidations. The main projects will be reviewed with emphasis on safety issues, LHC downtime risk and cryogenic systems performance. Finally their status, cost, resources and planning will be summarized.Go to contribution page
-
Jean-Philippe Tock (CERN)24/01/2011, 19:55The interventions affecting the cryomagnets, the interconnections and/or the superconducting circuits, excluding main splices consolidation and QPS interventions will be presented. All the tasks not covered in other talks of this session will be detailed, especially: the replacement of cryomagnets, the consolidation of the connection cryostats, the repair of interrupted Y-lines, the...Go to contribution page