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Overview of Vacuum Modules in LHC Experiments (ATLAS, CMS, ALICE, LHCb) at CERN

DESCRIPTION

This document presents a detailed overview of vacuum modules utilized in various LHC experiments, including ATLAS, CMS, ALICE, and LHCb. It highlights the specifications and configurations of vacuum modules featuring RF inserts, typical and special designs, as well as coating details. Key components, such as Cu inserts and Rh coatings, are discussed for their respective applications within the collider's framework. The summary also references specific measurements and overlap details pertinent to the vacuum systems employed in these high-energy physics experiments at CERN.

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Overview of Vacuum Modules in LHC Experiments (ATLAS, CMS, ALICE, LHCb) at CERN

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  1. Vacuum Modules in LHC Experiments V. Baglin (26/3/12) CERN TE-VSC, Geneva LRFF - 26th March 2012

  2. ATLAS from Q1L to Q1R • Vacuum modules with RF insert • 2 typical from LSS (VMABB) • 2 special for experiments (VBX) • 2 special vacuum chambers (VCIJP, X) LRFF - 26th March 2012

  3. ATLAS: VBX • Cu insert • 3 micron Rh coating LRFF - 26th March 2012

  4. ATLAS: VC1JP • Cu coating 10 micron • Should have Rh • Same as CMS VBX5B (see later) LRFF - 26th March 2012

  5. CMS from Q1L to Q1R • Vacuum modules with RF insert • 2 typical from LSS (VMDQB) • 2 special for experiments (VBX) • 4 special for CMS (VBX5A and B) LRFF - 26th March 2012

  6. CMS: VBX5B 100 micron Cu coating • Installed at 500 mm, so overlap about 23 mm LRFF - 26th March 2012

  7. CMS: VBX5A Cu insert • Installed at 312 mm, so overlap about 48 mm LRFF - 26th March 2012

  8. ALICE from Q1L to Q1R • Vacuum modules with RF insert • 10 typical from LSS (Vmxyz) • Y=A => 80/80 • Y=B => 63/63 • Y=C => 63/80 • Y=O => 100/63 LRFF - 26th March 2012

  9. ALICE: VMABA • Cu insert • 20 deg angle • Should have Rh coating LRFF - 26th March 2012

  10. LHCb from Q1L to Q1R • Vacuum modules with RF insert • 8 typical from LSS • 1 special wake field suppressor for VELO vacuum chamber (VC8A) LRFF - 26th March 2012

  11. LHCb: VC8A • I have to check and find the drawings Ref: CERN courier -Oct 2006 LRFF - 26th March 2012

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