1. 6/22/04 Slide 1 Hybrid Testing Status Lance Simms 6/22/04

2. Slide 2 With old software things were okay… Opens, shorts, and noisy channels detected Automatic XML uploading Cuts adjustable from configuration files Manual mode ARCS available for hardware troubleshooting Automatic report.txt file uploading to local database (UCSB only)

3. 6/22/04 Slide 3 But pretty ghetto for the most part Hybrids that failed at -20… a mystery; simply swept aside. XML files contain only -Flagged channels-Pedestal -Operator-Noise -Test Script used -Tool ID -Date/Time of test

4. 6/22/04 Slide 4 Even worse… False channel identification for six-chip hybrids (only seen in three cases) TESTWITHPA_val held at 0 regardless of test outcome Only two grades: PASS / FAIL –One or more shorted channels OR five or more noisy OR open channels -> Hybrid fails

5. 6/22/04 Slide 5 Now Underlying DAQ library can be compiled * * Microsoft Visual C++ 6.0 or higher required

6. 6/22/04 Slide 6 Latest Teststation version in use at CERN is now operational and modifiable Labview source code can be changed and recompiled into an executable file –Allows UCSB/FNAL specific adjustments such as readout of air/water flow sensor in ACDC –MUX, PLL, DCU, etc. are now accessible through C++/labview interface * *Not possible with code currently in use at UCSB & FNAL; dll source was not available

7. 6/22/04 Slide 7 Features of New Software PLL status check PLL Forcing (If necessary) Drifting Pedestal Check New Hybrid Grading: A/B/Fail XML generation (Not automatic yet) Manual mode disabled

8. 6/22/04 Slide 8 PLL Failure? Take those old hybrids off the shelf Initialization now talks to PLL –Reads bit 0 of PLL Control and Status register 1 1 if PLL is “going” –the norm after reset sequence –PLL operation is controlled by auto calibration circuit 0 if PLL is “not going” –Occurs at -20 C –Requires PLL “forcing”: PLL operation is controlled by I2C interface Hybrid will initialize in cold

9. 6/22/04 Slide 9 PLL comment in report & XML file Slight problem: For some reason pedestal and noise have increased edges with new software. Probably something simple.

10. 6/22/04 Slide 10 Open Vias should be found Final report vi compares the average pedestal for each APV between tests If pedestal drifts, comment will be made in report.txt and XML file

11. 6/22/04 Slide 11 New Grading: Agreement with CERN "TIB_P_4D", "TOB_P_4U".."TOB_S_4D", "TEC_4U" 0-2 noisy or open channels "A" hybrid 3-4 noisy or open channels "B" hybrid 5+ noisy or open channels“Failed” One or more shorted channels*“Failed” "TIB_S_6U".."TID_S_6D", "TOB_P_6U", "TEC_6U", "TEC_6D" 0-3 noisy or open channels "A" hybrid 4-6 noisy or open channels "B" hybrid 7+ noisy or open channels “Failed” One or more shorted channels* “Failed” *New code still allows for only one channel to be flagged as short. A consensus should be made as to what constitutes a short.

12. 6/22/04 Slide 12 XML Generation Bruno Wittmer (teststation architect) is person associated with XML files XML files output by new software should contain everything in old files + * –Comments on PLL & Drifting Pedestal –TESTWITHPA_val indicating grade of hybrid Automatic uploading will be added *Still have not successfully generated XML file with new code

13. 6/22/04 Slide 13 Additions to Code CVS repository at CERN contains all updates http://cms-project-cmstobss.web.cern.ch/cms-project-cmstobss/ CVS tools available in linux * and Windows, making updating easy US can contribute *Documentation: http://cmsdoc.cern.ch/cmsoo/projects/cvs_server.htmlhttp://cmsdoc.cern.ch/cmsoo/projects/cvs_server.html

14. 6/22/04 Slide 14 Equipment One spare peltier in US –Ours has failed due to overheating once ARC boards (Ask Tony) One spare crate at UCSB (belongs to Fermilab/going to Mexico City) NIM modules (1 of each used in pulser) Spare humidity & temperature sensors 2 peltier power supplies No spare chiller (Perhaps one should be purchased)

15. 6/22/04 Slide 15 Documentation & AOB Documentation on ARCS, ACDC, XML files, etc. will be collected, organized, and posted on web Side by side updating of code at UCSB and Fermilab