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LHC Sync. Light Monitors Status and Plans

This document provides an overview of the LHC Emittance Meeting held on February 5, 2014, focusing on the status and plans concerning BSRTM (Beam Synchronization and Response Time Monitoring) designs. It details two design options for the BSRTM, including the baseline option featuring a longer mirror and all-metal support. The plan includes new light shielding, calibration lines, and enhanced functionalities to adapt to the new optics layout. There are also updates on scheduled installations and component deliveries, along with discussions on digital cameras and tomography measurements.

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LHC Sync. Light Monitors Status and Plans

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  1. LHC Sync. Light Monitors Status and Plans 05 Feb 2014 Emittance Meeting (~= BI-TB Jan 2014) F.RoncaroloA.Goldblatt, G.Trad, E.Bravin, S.Mazzoni, W.Andreazza, G.Shneider,M.Wendt, N.Chritin

  2. Overview • BSRTM Design • Option A: original design with ceramic pieces • Option B (BASELINE): Longer mirror, support behind RF screen, all metal • Optics • Low wavelength optics • Interferometer (B1 only) • New calibration line (B1 only) • Change tank support from ‘chair’ to 3 pillars (B1 only?) • New light shielding • SW • New functionalities to cope with new optics layout • Filter wheels  pneumatic IN-OUT • Interferometer • Possible request of tomography meas. (ABP)  fastest and synchronized camera acquisition • Discussion on Digital Cameras

  3. New Calibration Line BSRTR B1

  4. New Calibration Line BSRTR B1 ECR circulating System (BSRTR = BTVSI modified) in production expected delivery: March Scheduled installation: March Components outside vacuum to be ordered, not critical, will be installed fall 2014

  5. BSRTM Option A (ceramic) Mirror holder components (except springs) made in ceramic 2 systems in fabrication Expected delivery Keep as backup solution

  6. BSRTM Option B For both option A and B, see BI-TB Oct 2013 for details on RF studies • BASELINE Option • ECR submitted • 2 systems in fabrication • Expected Delivery: February • Schedule • RF tests in the LAB? • To TE-VSC for testing: 15 March • Installation: April ?

  7. Tank Support Proposal: change B2 immediately, to free space for halo monitor Decision: change B1 support from ‘chair’ to 3 pillars (existing) to free space on optical table

  8. Optics Layout

  9. New mirrors • 2 mirrors compatible with option B, coating visible : arrived, backup solution • 3 mirrors with coating in the UV (down to 230nm) for option A + 3 for Option B • Expected delivery end of February • Can be the bottleneck for scheduling

  10. New Light Shielding

  11. Digital Cameras

  12. Summary

  13. https://espace.cern.ch/be-dep-bi-tb/Lists/Calendar/Attachments/840/LHC%20PROPOSAL.pptxhttps://espace.cern.ch/be-dep-bi-tb/Lists/Calendar/Attachments/840/LHC%20PROPOSAL.pptx https://dfs.cern.ch/dfs//Departments/AB/Groups/BI/Sections/PM/Projects/LHC/BSR/Docs-Litterature-Publications/BSRTWG/2013-09-10/BSRT_WakefieldAnalysis.pptx

  14. RF Simu (M.Wendt)

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