Status of QC at various production sites

1
Drift Tube QC Meeting CMS meeting Catania
18th June 2001

• Status of QC at various production sites
• Compoments Bologna/Protvino
• 
  Torino
• Chamber Aachen,
  Madrid, Padova
• 
  
• - Data Base status report
  Simone, Marina
• - AoB

2

• New Version of the QC document
• Version 6.2
• http//www.to.infn.it/activities/experiments/
• cms/QualityControl.html
• Modifications w.r.t. to 6.1 version
• - Bar Code numbers reserved for Alignment items
• - Added tables defining NEW Specific Code

3
QC for AL Plates production

• Status of QC for Al Plates production
• Exercise to test the QC procedure foreseen
• in the document

Assembly step QC step Status of QC
Identify Al plates box Identify Al strip and Mylar strip batch Check raw plates
Cut plates ID Al plates
Deposit strips Measure Al plate geometry (length, width, diagonals) with camera Measure position of strips
4
QC for AL Plates production
Assembly step QC step Status of QC
HV test Fast Test increasing voltage up to 4 kV, 500V/sec Standard test Test on single plate 4 strips granularity increasing voltage up to 4 kV, 50V/sec Keep voltage for 30 min Measure currents (offsets) SY527 Failure recovery cases sparks moderate currents (O(microA))
Temperature, Pressure and Humidity Recorded each step of production
5
Production Data Base
QC for AL Plates production

• A window panel is provided
• to the operator to follow the steps of the
  production workflow.
• All data are recorded automatically
• into an Excel file.
• A traveler file associated to each plate
• is also automatically generated.
• Record data into Production Data Base

6
Production Data Base
Info in Data Base - change proposal

• Bar code classification 8 surfaces
• DataBase classification 5 plates
• The up surface is identifying the plate
• In the Data Base
• AlRaw OPERATION BATCH NUMBER SITE
  DATE
• Plate ID_PL LX LY BATCH NM VER
  DATE
• PlateComment ID_PL Batch_mu Batch_Pechiney
  Batch_MyInd
• Batch_AlInd
• PlateEnv ID_PL TEMP HUMID PRESS DATE
  TIME COMMENT
• PlateChangeStripBatch ID_PL SIDE
  NUMBER Batch_mu
• PlateChangeMylarBatch ID_PL SIDE NUMBER
  Batch_mu
• PlateDimTest ID_PL n_measurments LOCATION
  DATE
• PlateNomPosStrip ID_PL A C E NSTRIP
  LSTRIP
• PlateMeasAllStrip ID_PL TYPE NM MEAS(1)...MEAS(NM)

7
Production Data Base
Quality Control Meeting summary CMS meeting
Catania 18.06.2001

• Status of QC Al-Plate production in Torino
  Silvia
• Status of QC Chamber production in Aachen and
  Legnaro
• 
  Hans ,
  Ezio
• - QC procedures and tests during production
  follow
• the Document
• - Check during production List of QC
  tests
• 
  QC flow diagrams
• 
  QC tests numbers
• Provide the operator of synthetic
  instructions possibly written in mother language
• Production Data Base
  Simone, Marina
• - Al-Plates component information will be
  adapted to the existing DB
  structure. ( Only part of information will be
  stored)
• - Use of real Data Cards to build SL
• - Send and Receive actions implemented in
  the Java Interface