COMMISSIONING AT BB5

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COMMISSIONING AT BB5

• OUTLINE
• ?Operations at BB5 to make chambers
• Ready for Installation
• ?Mention of operations to be done later
• ?Status of MDT-RPC integration
• ?Comments on the schedule
• ?Man Power
• ?Funding

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OPERATIONS AT BB5 (1)

• Complete MDT chamber equipment
• Test MDT
• Take action on the chamber, if needed
• Store information to Data Base
• Mechanical assembly of RPC modules
• RPC cabling
• Test RPC
• Take action on the RPC, if needed
• Store information to Data Base

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OPERATIONS AT BB5 (2)

• Assembly MDT RPC
• Do final RPC cabling
• Test RPC
• Take action on the RPC, if needed
• Store information to Data Base
• Flush chambers with gas
• Take data with cosmics
• Do data analysis
• Take action on the chambers, if needed
• Store information to Data Base

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OPERATIONS AT BB5 (3)

• Store temporarely MDT RPC stations at BB5
• Install missing components not available at
  beginning
• Test
• Take actions , if needed
• Store information to Data Base
• Transport to final storage

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OPERATIONS BEFORE INSTALLATION

• Transport to Atlas point
• Test on the surface
• Take actions , if needed
• Store information to Data Base
• Install on the apparatus

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Mechanical integration

• Procedure ready and tested since more than a year
  at LNF with dummy RPCs and in BB5 with real
  chambers (for H8 2003)
• Tools for the series assembly, handling and
  storage of the BML stations ready and available

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Services integration

• MDT drawings ready and implemented
• RPC cabling exercise at LNF not yet finished
  study essentially concluded, engineering being
  done
• MDTRPC station complete drawings in progress
  (depend on the conclusion of the RPC cabling
  exercise)

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DCS - CSM RASMUX on the R.O. Cross Plate
It seems possible to install CSM-DCS-RASMUX on
the RO Cross Plat, in the middle, between Long
Beam terminations. Using an additional plate is
possible to make a pre-assembly and than fix all
on the Cross Plate. OPEN ITEMS - We have not
fully tested the electrical compatibility and the
cabling integration (also with respect to RPC
cabling). - We have to verify the accessibility
on the barrel
ADDITIONAL PLATE To fix all on Cross Plates
EXTRA LENGTH CABLE STORAGE AREA free space where
it is possible to roll up and fasten cables,
adjust the orientation of flat cables to avoid
stress on the connectors. This area is available
on both sides of the additional plate.
FRONT VIEW OF R.O. CROSS PLATE Real dimensions
considered for all components
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BML Station 5C-01Assembly Drawing - Preliminary
Alignment Systems Axial Praxial is on the
drawing Reference and CCC Platforms is on the
drawing Reference and CCC Extension Plates and
components still not included (waiting for
drawings)
MDT Services MDT Services is on the drawing DCS
and CSM not yet final (waiting for drawings)
RPC Services and cabling RPC Services and
cabling is on the drawing (according to the Test
going on in Frascati) HV-LV-DCS board position to
be confirmed

• S.Cerioni - ATLAS Barrel Engineering Meeting
  CERN 15-December -03
  

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BML Station 5C-01Assembly Drawing - Preliminary

• S.Cerioni - ATLAS Barrel Engineering Meeting
  CERN 15-December -03
  

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BML Station 5C-01Assembly Drawing - Preliminary
RPC and MDT Gas points coordinates
RPC HV-LV-DCS
RPC Electronic boxes cabling

• S.Cerioni - ATLAS Barrel Engineering Meeting
  CERN 15-December -03
  

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RPC side cabling
RPC Electronic boxes and cabling
RPC side cabling Test-signal
MDT HV splitter box Gas Common Supports
cabling is Final
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RO side
RPC Electronic boxes and cabling
RPC HV-LV-DCS
MDT Gas Common Supports cabling is
Final DCS and CSM not Final

• S.Cerioni - ATLAS Barrel Engineering Meeting
  CERN 15-December -03
  15

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Side View
RPC - cables routing
Space to open MDT Faraday Cage
Space to open MDT Faraday Cage
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Next steps

• As soon as RPC cabling completely defined,
  assembly and test with cosmics of a BML station
  at LNF ( CS from Dubna production and final RPC
  cabling and services)
• Start preparing the first BML station assembly at
  BB5

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Status of the components

• Common Supports production in Dubna started
  first shipping of 10 CS within february?
• MDT missing CSM and ELMB (to be added
  afterward problem with storage?)
• RPC unavailability of preproduction of trigger
  electronics until may 2004 (10 pieces). Problem
  with BB5 cosmic ray station trigger ! (to be
  added afterward problem with RPC test and
  storage?)

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Stato Consegna elettronica MDT-BML 6
Febbraio 2004
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COMMENTS ON THE SCHEDULE

• Up to now only work on the MDT chambers at Cern,
  which did not have the gas distribution
  installed, has been done
• When the RPC cabling will be defined the MDTRPC
  assembly will start
• A learning phase will be necessary in order to
  optimize the procedures and the facilities and
  the relative software
• During the learning phase the production will
  proceed at reduced speed
• In the regime phase the speed considered up
  to now is 1 Station / day
• The feasibility of this has to be demonstrated

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(Hypothesis of)SCHEDULE

• Assumptions start march 1st , learning
  phase 1 month , ?
  speed at regime 1 station /
  day
• March 4 stations
• April 20 stations
• May 20 stations
• June 20 stations
• July 10 stations
• August 0 stations
• Sept 20 stations
• Oct-Nov Installation of late arrival components

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Man Power

• Man power needed at BB5
  ? MDT 1 mechanical
  technician
  ? 1 electronic technician
  ?
  1 responsible engineer
  ? 1 physicist
  ?
  
  ? RPC RPC staff
• In the learning phase more personnel is needed
• 
  
  

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FUNDING

• The travel money assigned is totally insufficient
• The commissioning work needs to be adequately
  funded
•