1. Quality Control QC is taken very serious QC Document for Tube Production QC Document for Module Assembly QC Document for Installation

2. Graphite Coating Visual Resistivity (sides, bottom) Detailed records Wires Visual Test sample of every spool Capacitance Resistance/Connectivity Tubes Leak test Burn-In Plateau Long term stability (30 days) Wireholder Position PC Board Visual Connectivity Cold solder joints

3. QC at Pol. Hi. Tech Profiles, Paint, Wire, Wire-holder, End-caps, PC boards Sleeves All components pass visual inspection All components within mechanical tolerances No defects in coating Surface resistivity within specs No bad solder connections on PC board Pass leak test (<1 small bubble/min) Pass wire test (weigh wire segment of each spool) Pass wire tension test/capacitance within specs Pass electrical conditioning test >400 V plateau in binary gas Pass 30 day test Tube accepted and sent to US

4. QC at Princeton and Ohio State Tubes Ribs Phi - Strips Inspection of shipping box/transport damage Tube resistance and capacitance within specs Pass burn-in/conditioning test for 7 days Good signal shape >300V plateau with ternary gas Counting rate on plateau within expectations A sample of tubes pass efficiency test Pass scan test Phi strips pass conductivity test and visual inspection Module passes 7 day burn-in test Module accepted and sent to SLAC

5. QC at SLAC Modules z – Strips Electronics HV, cables Inspection of shipping box/transport damage Tube resistance and capacitance within specs Pass burn-in/conditioning test for nn days -> Action Item: Define QC procedures at SLAC Can we create a preliminary list today? Module installed

6. Full System Test at SLAC It would be very valuable to have a complete system up and running at SLAC before we install the first modules into BaBar This should include Cosmic ray trigger Several modules with z- strips (Production) HV system (Production) Front-end electronics BaBar DAQ Should we encourage somebody to look into this?