G. Carboni - Muon Meeting – Draft Agenda Muon Meeting 6 April 2004 Introduction (15 min) Total 15 min MWPC prodution Material supplies, logistics panels (also M1) cathodes (20 min) other orders (5 min) shippings to Russia (10 min) logistic model for FE-FI-RM2 (G. Passaleva, 15min) HV connectors: frozen? Farday cages? (discussion 30 min) Total 1h30m Schedule/milestones (10 min) status CERN (JSG 15 min) Coffee break 16:10 – 16:40 status LNF (Carlo Forti 15 min, D. Pinci source test 15 min) status PNPI (Nelly Sagidova, 15 min) status PZ (Celeste Satriano, panel gluing 5 min) status FE (Stefano Germani 15 min) status FI (10 min) next PRR dates (discussion) Actions? Total 1h30m 18:30 Break Possible continuation

G. Carboni - Muon Meeting – Draft Agenda Muon Meeting 7 April 2004 Electronics 9:00 – 11:15 News on DIALOG and SYNC, NRE confirmation (A. Lai 20 min) Freeze chip packages (discussion, 20 min) Board and chip testing: progress. Rio and Potenza (G. Auriemma 20 min) Coffee break 10:00 – 10:20 Forthcoming electronics milestones Status and perspectives of the FCT test (milestone June) (A. Lai, 20 min) Status of the SPB (milestone July, start scheduled for April) → funding implications (20 min) AOB (15 min) Total 2h15m including discussion and coffee Integration 11:15 – 12: 15 Gas system (B. Schmidt, 20 min) Other items (B. Schmidt 20 min) HV system: remind that we decide in June AOB GEM 12:15 – 12: 35 R2 decision. TDR Addendum (20 min discussion) LUNCH to 14:00 Test beam activities (15 min) Funding issues (?) We could perhaps discuss funding on Tuesday late morning? Editorial board TDR Addendum

G. Carboni - Muon Meeting – This meeting we should try to freeze what can be frozen Since we are facing a difficult situation (both in chamber and electronics) it is dangerous and/or a waste of time to keep too many options open What is still undecided (or was undecided until recently), or not fully clear Shippings to Russia and inside Italy HV (and LV?) connectors on chambers M1R2: MWPC or GEMs? HV system LV Power Supplies CARIOCA packaging CARIOCA and CARDIAC test Installation of final electronics: where? when? Manpower for installation

G. Carboni - Muon Meeting – a) the number of GEM chamber to build increases by 400% b) manpower problems, as stated clearly by Gianni in the meeting we had in LNF. We are already having small but disturbing manpower problems here and there, and we should have a reserve for our "core business", i.e. MWPC. c) moreover, we have surely underestimated the manpower needed for installation and commissioning of the system. Keep in mind that our present schedule foresees the production continuing during the installation phase. We need in any case more people. d) extra efforts needed at all levels to convince LHCb Management, LHCC, INFN and to justify the fact that we did not take a decision etc, but uncertainty of the outcome. Possible delay of the TDR Addendum. e) undefined planning for at least one year. Extra Milestones. f) more complicated gas system (recirculation) and extra costs, more effort to be put on the gas system design One could simply say in the TDR that of course the GEM are a possible solution also for R2, but that we stick to R1. In the (not unlikely) case that we have to stage M1, we could perhaps resurrect the GEM in R2 option later if i) there is an (unlikely) availability of manpower, ii) plus plenty of available funding from INFN Problems with GEM in R2

G. Carboni - Muon Meeting – Installation Milestones Buffer Duration of installation period 1st half M2R4(PNPI1)12 weeks5 weeks 2nd half M2R4(PNPI1)8 weeks5 weeks 2nd half M1R4(LNF/FE)4-8 weeks5 weeks 1st half M1R4 (LNF/FE)3-7 weeks4 weeks 2nd half M4R4(PNPI2)0 weeks 12 weeks 2nd half M5R4(FI)1 week12 weeks Reshuffling could be considered later, but it could cure only minor problems. Notice that PNPI2 is already marginal and a further delay is planned since CMS production will end by June and not April We also should carefully consider the availability of the electronics chip availabilty chip testing board production board testing board installation on chambers

G. Carboni - Muon Meeting – CERNPNPILNFFEFIPNPI2 M2-M M4-M M M2-M M4-M M Installation summary

G. Carboni - Muon Meeting – # built by # built by (january estimate.) # missing according to master schedule (acc. to january estimate) Nominal rate of production planned date (january est.) PRR CERN514 (14) 0 (0)AchievedDone LNF820 (20)23 (0)AchievedDone PNPI26 (12)29 (6)31.03 (30.04)Done FE02 (3) 0 (1) 24 (3)9.03 (31.03)~ March 04 FI015 (1)7.07 (7.07)~ April (50) 3% (3.5%) ~ 100 (10) Detector production update Our january estimates were still optimistic!

G. Carboni - Muon Meeting – GEM in R2? My Mail of March 10 Dear friends I personally believe that we should give up the GEM in R2. We are quite sure that MWPC will work for many years in R2 and, as Pierluigi said, they are less than 2% of the total number of chambers, and less than the spares of all the rest. So building them is not really a problem, and we could probably get away by saying that the construction will be distributed in due time among the various centers.

G. Carboni - Muon Meeting – ch ~ 5% total

G. Carboni - Muon Meeting – ch ~ 2.5% total

G. Carboni - Muon Meeting – ch ~ 1% total