Detector Control System ELMB Production ATLAS DCS Evolution Different versions of ELMB Production strategy Radiation Qualification Testing Quality Assurance Procedure for failure Conclusion

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 2 LMB (50 modules) –Component pre-selection ELMB v1 (20 modules) –PCB had 8 layers ELMB v2 (300 modules) –6 layers –Class 6 One more iteration required –Final check PCB Evolution

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 3 ELMB Versions ELMB comes in two “flavours” –With ADC –Without ADC Same software supplied on both versions –Non-standard software must be loaded by user if required Same tests performed (with exception of ADC)

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 4 Costing (Side A)

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 5 Costing (Side B and Total)

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 6 Costing (BergStak connectors) Price comparison for the BergStak connectors

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 7 Batch production –Plan just one or two batches Expected number produced in first batch, if more required, a second batch produced –Plan many, smaller batches As more required, a new batch is produced First batch - earliest available start main sensitive components bought in one go as homogeneous lots Production Strategy

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 8 25 ELMBs manufactured –components will be randomly selected from the purchased homogeneous lots Tests completed at Louvain-la-Neuve Radiation Qualification

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 9 Main testing done at production site –A number of modules on one bus –Programmed simultaneously –Tested all at once Acceptance testing completed at CERN –Statistical testing only –Only verification required as full testing had been completed at production site Testing

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 10 Current numbers of available ELMBs low May require pre-production series –non-radiation qualified –for use in USA15 only Acceptance Testing

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 11 Component pre-selection completed using LMB in radiation tests Design has been proven in test beams Full radiation pre-qualification done Further testing in “realistic” radiation environment (TCC2) Quality Assurance

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 12 “Guarantee” for an initially working module Modules are seen as consumables –Failure will be investigated –Recurring problems will be repaired For cost effectiveness Procedure for Failure

ATLAS DCS ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook 13 Before tendering –Pledges necessary from users Numbers required Commitment to purchase Time-scale –How many by when? Conclusion