1. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University DJC Testing at LaTech: Update

2. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University Quality Control Tests of DJC’s 1.Continuity and shorts test 2.Resistance testing 3.High voltage standoff testing. LaTech Testing Crew: Moreshwar Dhole Qun Yu Matthew Bellot Henry Hollins

3. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University Since our last report Updated and improved our database to reflect changes suggested last time and to include results of recent testing Received 168 50cm-test cables from Century –Commenced affixing backings to cables as per procedure from Jim Fast –In parallel, ~80 of these have been tested

4. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University On the following slide are sample data from SHEET 1 of the DJC database (http://caps.phys.latech.edu/~greenw/run2b /run2b_page.html)http://caps.phys.latech.edu/~greenw/run2b /run2b_page.html

5. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University

6. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University Also on the DJC database spreadsheet is SHEET 2 which has resistance measurements, mean resistances and standard deviations. Part of this sheet is on the next slide..

7. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University

8. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University Some Observations… We have tested ~125 Century cables. Of these, ~ 10 cables have some type of defect- shorts between lines, discontinuity, or high resistance. Shorts are the most common of these.

9. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University END OF REPORT

10. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University EXTRA SLIDES

11. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University Digital Jumper Cable Readout Setup:

12. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University 3) High Voltage Standoff Test: The purpose of this test is to check whether there is any short or current leakage (Arcing) between HV (High Voltage) Cu trace and other adjacent Cu traces. For this testing here at LaTech we developed our own High Voltage Testing Jig and it is working fine. This High Voltage Testing Jig allows us to test 10 cables at a time for overnight.

13. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University Test procedure: Continuity: two multimeter probes are connected to both ends of the line in a given cable, if the line is good, there will be “beep” from multimeter. Short circuit tests: each line is tested against its nearest neighbor.

14. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University High Voltage Test Schematic

15. 8Sep 2003 Run2b Readout Meeting Qun Yu / Moreshwar Dhole Louisiana Tech University Complete Test Setup: