1. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels1 PP0 & Service Panels 1.Introduction 2.Technical Status 3.Goals for 2002

2. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels2 Introduction Service panels run from detector end to end of support tube X-section through service panels 3-D view of panels PP0 region. All services break here

3. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels3 Power wires need to be cooled Opto boards must be kept below 20C Dedicated cooling loop 12 PPO Flex Boards connect Electrical cables from modules to Optical & electrical services Opto boards PP0

4. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels4 PP0 Schematic

5. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels5 Technical Status: PP0 V.1 First PP0 prototype fabricated Jan. 2001 Rapidly became electrically obsolete Demonstrated folding technique to produce very long flex. Method works but, Yield is low & cost is high because surface area is large

6. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels6 Technical Status: PP0 V.2 Need second prototype to: –Continue service integration work –Prepare for system test Module connector pinout specified HV on separate connector decided Will use micro-welded aluminum ribbon instead of folded flex cable Waiting for Opto-board power requirements to be decided

7. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels7 Technical Status: Service Panel

8. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels8 Technical Status: PP1 End Possible implementation TOP BOTTOM Aluminum power wires w/ gold-plated ends soldered to small flex tail with 180 pin SMT connector here This flex board carries 160A and dissipates 3.5W 6 cm

9. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels9 2002 Goals: PP0 Fabricate V.2 prototype –Fab. $3K –Connectors $3K –Outside assembly $1K –Testing 80 hours technician –Microwelding 40 hours technician Totals –$7K –120 hours technician

10. Nov. 8, 2001M. Garcia-Sciveres -- PP0 & Service Panels10 2002 Goals: Service Panel Assemble one electrical panel with carbon fiber face sheets –Mechanical materials $1K –Aluminum wires $2K –Gold plating of wires 40 hours shop –Qualification tests for wires 80 hours tech. –PP1 end connector tail fabrication & assembly $3K –Assembly 60 hours tech. –Testing 80 hour tech. Totals –$6K –220 hours technician –40 hours shop