2. LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012 Notes on A8 transport 2 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 10/04AMTruck wired for thermal blanket PMPacking and storage indoors at Frascati Wed 11/0410:00Departure for customs depot (Ferentino) 12:00Departure for CERN from Ferentino Thu 12/0400:00-05:00Mont Blanc tunnel entrance window 08:00A8 at Godrand (Ferney Voltaire) before opening 10:00Arrival at ECN3 15:00A8 in ECN3, accelerometer dismounted Fri 13/04AMA8 opening, inspection and rotation PMBegin to prepare tools & area for installation

3. LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012 A8 transport – 10 May 3

4. LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012 A11 vessel delivery – 11 May 4

5. LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012 Current status of A11 – 22 May 5 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

6. LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012 Status of A9, A10 vessels 6 Start-up meeting INFN-Fantini on 9 May at Fantini (Anagni) Principal question discussed: Can requirement for stainless steel with μ/μ 0 = 1.01 be satisfied? Suppliers will only guarantee μ/μ 0 = 1.05 (at best) before lamination Welding, machining, etc. will give rise to areas with increased μ/μ 0 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/μ 0 can be relaxed Measurement of μ/μ 0 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 out Assuming same schedule as for A11, A9 will be delivered to Frascati no sooner than end of November

7. LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012 Installation summary 7 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

8. LAV construction status – M. Moulson (Frascati) – Photon Veto WG – CERN – 23 May 2012 Summary 8 A1-A8 installed and ready for cabling A11 nearing 50% completion at Frascati A11 delivery to CERN by 2 nd 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