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SUPERB site status report for layout v12 S. Tomassini INFN-LNF On behalf of SuperB Collaboration SuperB general meeting– ELBA – May, 29th - June 5th , 2010 Outline • Update on site and footprint since last December • White Paper toward TDR “work update” (May 2010 – release v12) Circumference= 1.25 Km SuperB footprint at LNF (May 2010) LER SLCs if arcs have a vertical offset of about 20 cm HER Synchrotron Light Channels and LER injection (May 2010) HER injection and ring crossing DAMPING RING LINAC Pumping station Cryogenic Plant KLOE C-room Klystron Hall Power Supplies DAFNE Magnetic Measurements DAFNE C-room S. Tomassini Reusable Civil Infrastructures: LINAC, Storage Rings, damping Ring… Collider hall Damping ring SuperB: Horse-shoe type X-section 3D view 3D view with underground 3D view: LINAC access points 3D view: transfer lines and injection tunnels 3D view: SuperB collider hall and DAFNE 20 m Cryogenic plant progresses Dear Bill, Sandro and Giovanni Please find attached my estimates of the required 4.5 refrigeration capacity for the Babar solenoid and the final focus superconducting magnets. These numbers are based on experience with BaBar and the current conceptual design of the final focus magnet cryogenics. The capacity numbers are conservative which is where we need to be at this stage of the design. Based on the information from INFN, it looks as if the existing Frascati Linde plant is significantly smaller than our needs. The existing BaBar plant if operated at a flow rate of 150 g/s nominally produces 1 kW @ 4.2 K. If we were to ship the plant I assume we wuld also send along our helium compressors as well. The CTI plant going to Fermilab is specifically being sent without that compressors to make to allow them to be available for SuperB if needed. I hope this helps. Please let me know if you have additional questions, comments or suggestions on this topic. Cheers, John Weisend 3.13 Site and Utilities 3.13.1 Site geology………………………………………………...01 3.13.2 SuperB footprint at LNF (and Tor Vergata)…………...…02 3.13.3 Tunnels……………………………………………………...03 3.13.4 Ground motion measurement at LNF………(LAPP)…..06 3.13.4.1 Measurement location……………………………...…06 3.13.4.2 Ground motion amplitude with time………………….07 3.13.4.3 Comparison between surface and underground......08 3.13.4.4 Ground motion coherence…………………………....10 3.13.5 AC power…………………(Sanelli-Ricci)……....…………12 3.13.6 Electrical substation……..(Sanelli-Ricci)…………..…….13 3.13.7 Cooling system……………(Pellegrino)…………………..14 3.13.8 Air conditioning…………………(Pellegrino)……………..14 3.13.9 Cryogenic Plant ……………..(G. Delle Monache- John Weisend) 3.13.10 WBS and cost evaluation………………………. (???) 3.13.11 Safety aspects……………………. (S. Vescovi is interested in) 3.13.12 Radiation protection project……… (A. Esposito is interested in) 3.14.13 Environmental Impact study……………………….(S. Vescovi) Balck= good for WP but preliminary for TDR Bule= preliminary for WP, not good for TDR Red= not done yet but planned for TDR CONCLUSIONS • The footprint has been updated to the v12 release. Also the Injection and transfer lines have been updated according to the last physics calculations. • The white paper paragraph writing has been finalized. • Few studies are still ongoing about the positioning of the tunnel and the various buildings and access pits. Thank you to the contributors for the great work done up to now. Preliminary Geological survey 1. On September 14th the first campaign of geological test started at LNF site: 4 holes of different dept have been bored in the points reported below. Each hole was tubed with a plastic pipe with an inner bore of about 70mm. 1. The number of holes was minimized due to budget reasons 2. A second campaign of other four holes is foreseen soon 50m 40m 50m 30m The second campaign of ground motion measurement was completed last October For results see Benoit talk and LNF note @ http://www.lnf.infn.it/sis/preprint/pdf/getfile.php?filename=LNF-09-13(P).pdf See also IPAC’10 proceedings. Electrical substation 150/20 kV 2 transformers 63 MVA each can be allocated (now 2*10 MVA) R. Ricci Cooling and HVAC (Heating, Ventilation and Air Conditioning) Plants Gross estimation is: - Thermal power: 30 Mw - increase 20 % (inefficiency, contingency, etc.) - actual power: 36 Mw - tunnel length 2700m, tunnel volume 62000 m3 -n. of sub-stations: 4 each substation requires: - Covered technical room = 700 m2 - External technical room (cooling devices)= 1000 m2 L. Pellegrino
