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OT dismantling Installation workshop 16/17 May 2018

A detailed summary of the dismantling and installation workshop held in May 2018 by B. Khanji, N. Tuning, A. Pellegrino, R. Walet. Work done by Alessandro Saputi, Augusto Sciuccati. Topics include documentation status, handling requirements, storage, and training needs, with a focus on the SciFi installation process.

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OT dismantling Installation workshop 16/17 May 2018

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  1. OT dismantlingInstallation workshop 16/17 May 2018 B.Khanji, N.Tuning, A.Pellegrino, R. Walet Work done by Alessandro Saputi Augusto Sciuccati

  2. List - summary • status of documentation • WPP v2.0 Sep 2017 • intereference with other sub-systems • Dismanteling IT same period • SciFi installation after OT dismanteling • who does what • Same team as SciFi installation • handling and tools requirements • Installation tools located and refurbished • status of training • Work at height training needed • storage, disposal • Prevessin bat 947

  3. Overview Bridge + table: keep for SciFi Cable trays + cables + rails: (partly) recycle for SciFi C-frames + detector + FE: no longer use

  4. Strategy Keep detector modules + FE on C-frames Place C-frames in special transport frame Transport frame to Prevessin Unmount modules + FE after SciFi installation

  5. Pit Preparation • Disconnect cables, cooling and gas lines from C-Frame patch panel • Disconnect entire rolling ducts from C-Frame • C-Frame is now “free” Decouple C-frame interfaces from infrastructure Place C-frames on transport frame (for 6-12 frames) • Locate C-Frame insertion/extraction “rail” + beam • Design and Construct Transport & Storage Frame • Move 12 C-Frames to Storage Frame • Locate storage space for 12 C-Frames Store frames above ground (don’t touch them) • Remove Rails (temporary storage) • Remove Table Rails (re-use) • Remove and Store Cable Duct (re-use) • Remove/Leave some cables (re-use) • If extra space needed (e.g. for Novec evacuation) then find it • Preliminary SciFi installation metrology Preparation Work area

  6. Summary • Dismantling OT • We propose to bringC-Frames as a whole to groundfloor • We assume storage facility in Prevessinwillbe ready • Re-use • Per C-Frame: • HV CablesforSiPM bias, LV cables(add 100% more), 2 Cable ducts • Bridge andTableand rails • Space requirements • Storage spaceabovegroundfor frame with 12 C-Frames • Extra (wrt OT) space in situ forSciFi (e.g. Novecevacuation, etc.) • Tooling • Transport & Storage frame design byAlessandro Saputi • We locatedthe old OT insertion/extractionbeam • Safety aspects • Risk inventory and assessment to be dealt with special attention, safetydocumentationneeds to be ready in advance

  7. Lifting beams for C-frames Lifting beams refurbished

  8. Storage building bat 947 in Prevessin • Transport frame • 2800 mm x 4800 mm x 7000 mm • Weight (empty): ~5 ton • Weight (full): ~20 ton • Crane too low to keep transport frame vertical: • Rotating transport frame being considered • 7.90m: surface building point 8 • 8.50m: under the hook of bat 947 in Prevessin

  9. Longer term • Panda spectrometer (GSI) expressed interest for OT • Modules • Electronics? • C-frames?? • Discussions ongoing

  10. Backup • See slides by Augusto Sciuccati 16 May 2018 • https://indico.cern.ch/event/687068/

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