Progress with Experimental Vacuum Chambers Introduction ATLAS CMS LHCb Summary Additional Projects Projects Website  

Introduction Why? Improvements to the LHC Experimental Vacuum sectors of ALICE, ATLAS, CMS, LHCb Critical spares New chambers and supports to minimise activation and background New chambers and supports for new detectors How? Organised into Work Package documents (presented by R.Veness Oct 2010) Work packages recently updated – pending approval When? Split into three long shutdowns in 2013, 2017 and 2022

ATLAS VI VA VT VJ TAS IP1

New VI chamber New VI Chamber (for new detector) 45 mm ID, 7.3 m long, beryllium chamber Quotation received ($1.1M) Targeted completion July 2012 Optimised Demountable Flange Design Demountable flange designed by N.Kos based on similar working design – to be tested

New VA Chamber Aluminium for ALARA and transparency 45 to 58 mm ID chamber in aluminium 2219 material Bellows manufactured and available Aluminium ion pump in first stages of testing – results expected end May 2011 Targeted completion December 2011 Picture: P.Lepeule Alu Ion pump Aluminium chamber Aluminium Bellows Picture: C.Garion

New VT chamber Aluminium for ALARA and transparency 58 to 80 mm ID chamber in aluminium 2219 Aluminium material delivery May 2011 Targeted completion December 2011

CMS Endcap Pipe CT2 HF Central Pipe IP5

CMS Endcap Pipe Spare Manufacture complete Vacuum acceptance test complete NEG coating scheduled July 2011 for completion August 2011 Picture: P.Lepeule

Study of opening CMS under vacuum Preliminary study completed end 2010 Detailed study complete April 2011 Report and conclusions in preparation for July 2011 Pictures: J.Bosch

LHCb UX85 2&3 supports UX85/3 UX85/4 IP8

UX85/3 Replacement Chamber First segment beryllium-beryllium EB weld cracked Weekly teleconference with supplier to resolve issue Delivery estimate August 2011 Picture: Brush Wellman

Optimised UX85/2&3 supports Requirement for eight flexible and eight rigid supports total Testing started on flexible composite supports Testing will start on rigid supports July 2011 Complete assemblies targeted for December 2011 Picture: L.Leduc

Jonathan Bosch, Paul Cruikshank, John Gallagher, Cedric Garion, Project Summary WP Number Description Due Delivery AT 2.2.1 Optimised Flange Nov 11 Aug 11 AT 2.2.2 ATLAS VI July 12 AT 2.2.3 ATLAS VA Dec 11 AT 2.2.4 ATLAS VT CM 2.1.1 Endcap chamber Dec 10 CM 2.1.3 Study July 11 LB 2.1.1 New UX85/3 LB 2.2.1 Optimised supports Reliant on supplier Acknowledgements Jonathan Bosch, Paul Cruikshank, John Gallagher, Cedric Garion, Hendrik Kos, Nicolas Kos, Louise Leduc, Patrick Lepeule, Nicolas Provot, Herve Rambeau, Gerhard Schneider, Raymond Veness

Additional Requested Projects Shutdown extended and moved to 2013/2014 New CMS central chamber (moved from LS2 to LS1) New ATLAS VI beryllium chamber (moved from LS2 to LS1) New 45 mm minimised flange for ATLAS VI Design study of support installation for Radiation Protection - requested by ATLAS New spare chamber solution for ATLAS and CMS LHCb spare aluminium bellows

Projects Website New Sharepoint site with up-to-date information on all Work Packages https://espace.cern.ch/te-vsc-upgrades/default.aspx