LHC Performance Workshop - Chamonix 2010

Session

Session 8 - LHC Upgrade Plans for the first long Shutdown

S08

28 Jan 2010, 17:00

Chamonix

Presentation materials

Paper

Session_8_write-up.doc

Session_8_write-up.pdf

39. Overview of IR upgrade scope and challenges

Ranko Ostojic

28/01/2010, 17:00

The goal of the LHC IR Upgrade Phase-1 is to provide more flexibility for focusing of the LHC beams in the ATLAS and CMS high luminosity insertions and to enable reliable operation of the collider at a luminosity above the nominal 10³⁴ cm^-2s^-1. This improvement is achieved by replacing the present low-b triplets and D1 separation...

38. Injector complex upgrades

Maurizio Vretenar

28/01/2010, 17:25

Summary of the LINAC4 project planning (including eventual required upgrades in the injector complex – PSB and PS), summary of the commissioning plan and the expected performance level and challenges (including the injector complex – PSB and PS), presentation of a time line for the expected–planned performance levels (bunch intensity and brightness versus time).

40. Optics Challenges and Solutions for the LHC Insertions Upgrade Phase I

Stephane Fartoukh

28/01/2010, 17:50

The goal of the LHC Insertions (IR) Upgrade Phase-I is to enable a reliable operation of the machine with a performance at least doubled with respect to its design luminosity. One key ingredient is ideally a reduction of b* down to 25 cm, using a new inner triplet (IT) with longer NbTi quadrupoles operating at a lower gradient (~120 T/m) and therefore offering a...

41. Hardware challenges and limitations for the IR upgrades

Stephan Russenschuck

28/01/2010, 18:20

The design work of the MQXC quadrupole magnets for the inner triplets is constrained by the baseline planning for the LHC-PP project, its co-funding by the European Union (PF-7), the suppression of superconducting cable development (using existing stock of LHC dipole cable), and the in-house production of the series magnets (with tooling recovered from the LHC production lines). Nevertheless,...

42. Planned upgrade activities in IR4 for the 2014/15 shutdown

Ed Ciapala

28/01/2010, 18:45

200 MHz capture cavities and feedback system upgrades, criteria for identifying upgrade needs and lead-time for taking decisions on the upgrades options for preparing Crab cavity installations in IR4.

43. Summary of the collimation upgrade plans

Ralph Assmann

28/01/2010, 19:10

Phase 2 collimator jaws, Cryo collimators and eventual required additional tertiary collimators and absorbers. Main milestones and deadlines for decision taking (e.g. what choice for the secondary collimators etc.). Strategy and time estimate for installation and commissioning of the new collimation system.

44. Integration issues in the tunnel and impact on general LHC systems

Sylvain Weisz

28/01/2010, 19:35

Planning of the various installation work in consideration of the space requirements, radiation levels, existing and missing infrastructures, alignment and survey, coordination issues for upgrade (e.g. collimation upgrade versus IR upgrade and impact of LHC general consolidation work on the LHC upgrade projects. Options for implementing some of the upgrade work already before the extended...