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LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012
Notes on A8 transport
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ShockLog malfunction: fresh batteries consumed in < 2 hours
Also happened in A7 transport, but not attributed to ShockLog malfunction (units were firmware updated and calibrated just before)
ShockLog units returned for repair – but no data on A7, A8 transports
Tue 10/04 AM Truck wired for thermal blanket
PM Packing and storage indoors at Frascati
Wed 11/04 10:00 Departure for customs depot (Ferentino)
12:00 Departure for CERN from Ferentino
Thu 12/04 00:00-05:00 Mont Blanc tunnel entrance window
08:00 A8 at Godrand (Ferney Voltaire) before opening
10:00 Arrival at ECN3
15:00 A8 in ECN3, accelerometer dismounted
Fri 13/04 AM A8 opening, inspection and rotation
PM Begin to prepare tools & area for installation
LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012
A8 transport – 10 May
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LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012
A11 vessel delivery – 11 May
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LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012
Current status of A11 – 22 May
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• Cable tray installed• Layer 3 installed – cabling started• Layer 2 – all 15 bananas ready for installation• Layer 1 – 28 of 60 blocks glued (waiting for banana frames)• Ready to ship by second half of June
LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012
Status of A9, A10 vessels
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Start-up meeting INFN-Fantini on 9 May at Fantini (Anagni)
Principal question discussed: Can requirement for stainless steel with μ/μ0 = 1.01 be satisfied?Suppliers will only guarantee μ/μ0 = 1.05 (at best) before laminationWelding, machining, etc. will give rise to areas with increased μ/μ0
Conclusions:Fantini-INFN tour of 3 proposed suppliers of stainless steel to take measurements of 304L plate stock
Suppliers: Griffon & Romano (MI), Outokumpu (CR), Forgerossi (VI)Dates: 22-23 May
INFN will investigate if criterion for μ/μ0 can be relaxedMeasurement of μ/μ0 for existing stainless steel segments of blue tube
Flanges will probably be made from forged steel
Material will be delivered to Fantini ~90 days after orders go outAssuming same schedule as for A11, A9 will be delivered to Frascati no sooner than end of November
LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012
Installation summary
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• A1-A5 installed during 3-week period from 06 to 24 Feb• A8 delivered to CERN on 12 Apr
began preparations for A6-A8 installation week of 16 Apr• A6-A8 delayed 1 week to allow completion of vacuum tests• A8, A7 installed week of 23 Apr• A6 installed week of 07 May
Missing flange under blue tube #10#10 extracted and flange replaced
Paint removal for cementing feet
LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012
Summary
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A1-A8 installed and ready for cabling
A11 nearing 50% completion at Frascati
A11 delivery to CERN by 2nd half of June
A9, A10 material procurement studies in progress
Possible delivery of A9 vessel by end of November
Preparation of A9, A10 bananas in meantime