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RPCs for CMS – Phase I Status report L. M. Pant BARC-NPD

RPCs for CMS – Phase I Status report L. M. Pant BARC-NPD. L.M.Pant India-CMS Meet, PU, Chandigarh 05 th April, 2007. Indents Status (12 sets) : Three RE*/3 & Nine RE*/2).

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RPCs for CMS – Phase I Status report L. M. Pant BARC-NPD

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  1. RPCs for CMS – Phase I Status report L. M. Pant BARC-NPD L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  2. Indents Status (12 sets) : Three RE*/3 & Nine RE*/2) L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  3. Signal cable preparation (Draka cable : ~ 3 mm OD) : RE*/2 & RE*/3 pre-assembly job # 1 460 mm; 740 mm A R Adaptor side Read out side L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  4. L1 insulator sheath L2 Copper braid core L3 Signal cable preparation (Draka cable : ~ 3 mm OD) : RE*/2 & RE*/3 pre-assembly job # 1 460 mm; 740 mm A R Adaptor side Read out side A R L1 L1 L2 L2 dimensions in mm dimensions in mm L3 L3 L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  5. Supreet from PU Abhinav from DU Signal cable preparation for RE*/2 pre-assembly job # 1 460 mm of signal cable being marked Signal cables being cut Top sleeve removed Cu braid being adjusted Cu braid being cut at 5 mm L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  6. Signal cable preparation for RE*/2 pre-assembly job # 1 Soldering on the core wire Read out -end Adaptor-end 460 mm of signal cable 96 signal cables (3 x 32) for one RPC ready L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  7. Teflon gas pipes : OD = 6 mm; Wall thickness = 1 mm pre-assembly job # 2 L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  8. B A C D Teflon gas pipes : OD = 6 mm; Wall thickness = 1 mm pre-assembly job # 2 L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  9. 1 8 12 mm 8 mm  C RE*/2 B 15.2 mm = X 15.2 mm x 8 = 121.6 mm = Y A Perspex spacers : 8 clear holes on 5 mm thick perspex pre-assembly job # 3 L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  10. Parallel sets of MFCs being attatched for large sized gaps for CMS-RPCs Gas Purifiers Gas cylinders inside the cabinet 4 channel gas mixing unit Iso- B U T A N E A R G O N Flow divider with safety bubblers R E 1 3 4 A S F 6 L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  11. Top view Bottom view Top and bottom overlapped Adaptor card design : Prashant Patale, NPD-BARC L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  12. FRC connector Top view Bottom view Adaptor samples for FEBs L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  13. Signal cables soldered to Adaptors ferrule FRC connector L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  14. 16 Signal cables soldered to Adaptors 72 + sets required for 12 chambers L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  15. Cosmic stand for CMS RPCs 2000 mm x 1600 mm L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  16. Vibration free assembly table for RPCs Full gap of RE*/3 L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  17. Safety bubbler with Si oil 18 cm 101.0 kPa Manometer with safety bubbler for leak tests L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  18. ? pin-drop silence Samples of following are urgently required in a second box to be shipped to India, immediately - 3rd Mar., 07 L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  19. Outlook 1 (March – April 2007) the pre-assembly jobs • Work schedule floated on 15 Feb. to collaborators • First job is to prepare about 1200 signal cables (960 +) • Procurement of materials from local market • (gas pipes, Cu tubes, Cu plates for cooling etc.) • Prepare the gas pipes according to the particular • shape requirements in the jigs • Fabrication of adaptor cards (100 cards by 15 April) • Leak and HV tests of the 9 gaps being sent from CMS L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  20. Outlook 2 (June – August 2007) the final assembly • The HCP, Cu Read outs, FEBs etc. expected by May 2007 • After the above equipments arrive – More hands are needed • Assembly of ten chambers : June 2007 • Someone from CMS (Cai) could be around in August/Sept. • (invitation should go in time) • Testing of ten chambers : August 2007 • Support for Cosmic tests from CMS (August 2007) • Scintillators, electronics etc. (to be DISCUSSED) • The ten chambers can be despatched by Sept., 2007 • AS SCHEDULED L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

  21. Mechanical Design & Prototype Devp. Section, BARC All the collaborators HECR Group TIFR EHEP Group TIFR Nuclear Physics Division, BARC Acknowledgements L.M.Pant India-CMS Meet, PU, Chandigarh 05th April, 2007

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