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Cylindrical RP developments

Cylindrical RP developments. RF optimization Mechanic layout Production. History: Development of RP housing for timing detector-> rotation of box RP by 90°. November 2012. Example of Cherenkov timing detector. RF issues related to Roman Pot.

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Cylindrical RP developments

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  1. Cylindrical RP developments RF optimization Mechanic layout Production LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  2. History:Development of RP housing for timing detector-> rotation of box RP by 90° November 2012 Example of Cherenkov timing detector LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  3. RF issues related to Roman Pot • RF simulation showed strong increase of beam induced heating for rotated RP box (90°) LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  4. Study of cylindrical RP LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  5. Optimization of RF characteristics(first preliminary results B. Salvant, BE-ABP-ICE) Present RP housing result with ferrite Study of new RP housing Study of possible RF shielding for existing RP result without ferrite Study is ongoing Not all issues are solved yet ! Ideal cylindrical RP without gap LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  6. RF simulation of cylindrical RP with ferrite on top LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  7. Comparison RP box <-> RP cylindrical LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  8. Cylindrical Roman Pot Mechanical design study (D. Druzhkin & D. Perini) LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  9. Inner pressure 1 bar 316LN (20˚C) Σ0.2 = MPa; ΣU = MPa; E = LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  10. Cylindrical RP LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  11. Roman Pot -> Integration study- cylindrical RP in horizontal station-L bar QUARTIC in cylindrical RP (TIMING detector) LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  12. STATUSTOTEM CYLINDRICAL ROMAN POT • RF optimization of new cylindrical RP finished • Production drawing ready and under approval • Prototype production scheduled for May-June2013 • Mechanical and vacuum tests will follow the prototype production • RP stations with standard dimensions Production (Vacuum Praha)possible – production drawing for 2 two independent horizontal RP are ready • Study of material budget with GEANT4 simulation (talk of F. Nemes) LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  13. STATUS TOTEM CYLINDRICAL RF SHIELDING • RF optimization of new cylindrical RP in final design phase • Prototype production scheduled for May-June2013 • Vacuum test scheduled after prototype production LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

  14. Sharing of work overviewwith CERN groups (not complete) EN-MEF-LE (coordination, synchronization with LHC planning & scheduling) PH-DT (RP mechanics, vacuum, motor, services, cable production .. ..) PH-ESE (electronic issues, fibers, HV cables…) EN-CV-DC (RP cooling system) EN-MEF-SI (cables)EN-MME-DI (new RP production) EN-ICE-SIC (FESA) TE-VSC-LBV (ferrite – vacuum measurements, beam pipe) TE-MPE-PE (LHC machine protection) DGS-RP-AS (radiation protection)PH-UCM(RP engineering, integration,…) BE-ABP-ICE (RP – RF study & optimization) BE-OP-LHC (Operation of RP – CCC) BE-ABP-LCU (collimators) TOTEM work packages & schedule LHC Working Group on Forward Physics and Diffraction J. Baechler TOTEM 16.5.2013

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