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 10/04 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

3

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

A11 vessel delivery – 11 May

4

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

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/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

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

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 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