SUPERB site status report S. Tomassini INFN-LNF On behalf of SuperB Collaboration SuperB general meeting– Frascati – September, 27th – October 1st , 2010

Outline Update on site and footprint since last meeting (ELBA) CDR2 toward TDR “work update” Road map since now till the day after approval

SuperB footprint at LNF (May 2010 – release v12) Circumference= 1.25 Km SuperB footprint at LNF 3

HER Synchrotron Light Channels and LER injection (May 2010) LER SLCs if arcs have a vertical offset of about 20 cm HER Synchrotron Light Channels and LER injection 4

HER injection and ring crossing (May 2010) HER injection and ring crossing

Collider hall Damping ring

SuperB: Horse-shoe type X-section

Emergency Exit and Access Point

3D North view

3D North view with underground

3D view: transfer lines and injection tunnels

3D view: SuperB collider hall and DAFNE 20 m 30 m 35 m

Second campaign of Geological survey On last July the second campaign of geological prospection was completed at LNF site. 4 additional holes of different dept have been bored in the points reported below and marked by a blue arrow. Each hole was lined with a plastic pipe with an inner bore of about 70mm. 40m 50m 40m 50m 40m 50m 1st campaign 30m 2nd campaign 40m

CDR2 toward TDR 3.13 Site and Utilities 3.13.1 Site geology………………………………………………...01 3.13.2 SuperB footprint at LNF …………………..…………...…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

Road map since now till the day after approval In order to not waste time, the day after the SuperB funding we should have the civil infrastructure preliminary design done! DAY AFTER FUNDING RADIOLOGICAL AUTHORIZATION FOR THE SUPERB OPERATION CONFERENZA DEI SERVIZI About 8-12 months to set it up About 5÷6 years to get it

RADIOLOGICAL AUTHORIZATION FOR THE SUPERB OPERATION It takes 5÷6 years to get this authorization. Without this authorization we can build the collider but we cannot run it. What do we need to ask for it? Collider design (Lattice, power, energy, particles lost, shielding calculation, positions for measurement of dose rate,… ) Civil infrastructure preliminary design

“CONFERENZA DEI SERVIZI” The “conferenza dei servizi” setting up takes about 8÷12 months since the submission of the “preliminary design” of the civil infrastructure to the City Hall. Will last the entire period of design and construction. PARTICIPANTS Frascati City Hall Lazio region Rome Province INFN ENEA Private owners (neighbors of INFN and ENEA) Research Ministry …

BUT Since now to the SuperB approval and funding, we have to: freeze the machine lattice and site soon (yesterday!!) produce the civil infrastructures preliminary design BUT We do not have the human resources needed! The only way, in my opinion, is to get external professionals. How long does it take to have the preliminary civil design done? About 5-6 months How much does it cost? About 100-200 K€

CONCLUSIONS The footprint is the same presented at Elba last May. The Injection and transfer lines are also unchanged. The white paper paragraph writing has been finalized. The preliminary design of the civil infrastructure should be done and added. Few studies are still ongoing about the positioning of the tunnel and the various buildings and access pits. A second campaign of geological prospection has been done (four additional holes) and results will be available in the coming weeks. A new campaign of ground motion measurements is scheduled for the next 4th October with the collaboration of the LAPP group.

Access to the construction site The access to the construction site or rather to the several concurrent site has to be optimized in order to prevent obstructions of the laboratory and site operations.

Reusable Civil Infrastructures: LINAC, Storage Rings, damping Ring… Pumping station KLOE C-room Klystron Hall Cryogenic Plant Power Supplies DAFNE Magnetic Measurements DAFNE C-room S. Tomassini Reusable Civil Infrastructures: LINAC, Storage Rings, damping Ring…

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 would 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

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