09/07/2002 1 Muon Meeting Status of MWPC activities at CERN and PNPI Outline: • Module 0 status and plans – M3R1 (CERN) – M3R2 (CERN) – M3R4 (PNPI) • Tooling status and plans – Wiring machine – Glueing station – Wire pitch measurement – Wire tension measurement – Soldering station • Production areas at CERN and PNPI are in a well advanced state
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09/07/20021Muon Meeting Status of MWPC activities at CERN and PNPI Outline: Module 0 status and plans –M3R1 (CERN) –M3R2 (CERN) –M3R4 (PNPI) Tooling status.
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09/07/2002 1Muon Meeting
Status of MWPC activities at CERN and PNPI
Outline:• Module 0 status and plans
– M3R1 (CERN)– M3R2 (CERN)– M3R4 (PNPI)
• Tooling status and plans– Wiring machine– Glueing station– Wire pitch measurement– Wire tension measurement– Soldering station
• Production areas at CERN and PNPI are in a well advanced state
09/07/2002 2Muon Meeting
M3R1 chamberStatus:• Design finished (Thomas Schneider)• Material preparation (PCBs) ongoing• Construction planned for August• Testing begin September (?) or October
->Unfortunately chamber is not really a module 0 due to pending problems, in particular on chamber closing.
->As we want to be able to reopen, there is no simple alternative to the O-ring, due to many connectors and the small gaps (otherwise we might have switched already to an alterntive solution. . . )
-> Chamber will be still made with honeycomb panels (of 10mm total thickness), due to alignment issues to be sorted out, a tight schedule and difficulties to get foam panels done in Italy in August.
->We are considering to put the loading resistors into the gas gap (suggestion of Seva).
09/07/2002 3Muon Meeting
M3R1 chamber
09/07/2002 4Muon Meeting
M3R1 chamber
09/07/2002 5Muon Meeting
M3 R2 and R4 chambersStatus M3 R2:• Design of M3R2 chamber planned for August• Material preparation and construction in September• Test in October
Status M3 R4 (tbc by Alexei): • Design done by A.Saputi / B.Botchine• Material preparation done by LNF group• Construction planned at CERN in September (Tooling for PNPI -in
preparation at CERN- should be used)• Test in October
->Schedule for both chambers is tough, we have to push
09/07/2002 6Muon Meeting
Status of Tooling Preparation
Wiring machine:• Wiring machine for PNPI under construction at CERN
(Raphael+PNPI technicians), following closely the design of the CERN wiring machine.
09/07/2002 7Muon Meeting
Wiring Machine (ctd)
Modifications:• Have both belts on the same side
(simpler transmission)• Introduce electromagnetic clutch to
facilitate start of the wiring process• To be decided still:
Implement tension measurement? Torque motor has still to be ordered
-> Be ready end of August
09/07/2002 8Muon Meeting
Glueing Tables
Status: • First glueing table has been finalized• Need to decide on exact positions of spacers for
glueing frames of Module 0
09/07/2002 9Muon Meeting
09/07/2002 10Muon Meeting
Wire pitch measurement
Status:• Hardware for first station ready (Michał, Raphael)• Software (LabView)
well advanced, should be ready this week
(Rebeca (SS)).
09/07/2002 11Muon Meeting
Wire tension measurementAcknowledgement:• Visit of A. Nedosekin in May was very useful to understand hardware and software of
the KLOE/ATLAS WTM-system !
Status:• 16-channel system could be purchased via LNF, but contains obsolete components (long
delivery time) and it is rather expensive (~10kCHF).• We investigated about adaptation of the system to up-to-date hardware (NI-DAQ 6602). ->First tests show that it is feasible (Michał and Anatoli)