1. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 1 out of 23 Status update and Test results for Run2b Si sensors at KSU Sergey Korjenevski Kansas State University Dec 12, 2002 SiDet, Fermilab The Run 2b Silicon Tracker Workshop, Dec 12-13, 2002

2. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 2 out of 23 Outline  Stock  Quality Tests status and results  Irradiation studies status and results

3. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 3 out of 23 Stock @ KSU – 12/11/02  ELMA prototypes: u L0 35 detectors s 7 first batch (February 2002) s 16 second batch (July 2002) s 12 third batch (November 2002) u L1 11 detectors s 4 + mech First batch all at Fermilab s 7 second batch (September 2002) s 4 third batch (November 2002)  HPK prototypes: u L1 4 detectors 3 test structures u L2 10 detectors 5 test structures  Updated Stock#data#.xls at html://www.phys.ksu.edu/~skorj/Dzero

4. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 4 out of 23  Leakage Current u Typical behavior example Breakdown 350V L0 ELMA

5. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 5 out of 23 L0 ELMA  Depletion Voltage Example Most of the prototypes have depletion point at around 25V ???

6. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 6 out of 23 L0 ELMA  Strip Measurements u Strip Leakage current (random 9 sensors) Student?

7. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 7 out of 23 L0 ELMA  Strip Measurements u Coupling capacitance @ 1kHz Cp-Q mode Cs-Rs mode

8. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 8 out of 23 L0 ELMA  Strip Measurements u R poly

9. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 9 out of 23 L1 ELMA  Leakage Current u Breakdown ~350V u 08,10 – no Bkdn, 12 – 800V

10. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 10 out of 23 L1 ELMA  Depletion Voltage Example Most of the prototypes have depletion point at around 22V ???

11. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 11 out of 23 L1 ELMA  Strip Measurements u Strip Leakage current

12. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 12 out of 23 L1 ELMA  Strip Measurements u Coupling capacitance @ 1kHz and @ 100 Hz

13. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 13 out of 23 L1 ELMA  Strip Measurements u R poly

14. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 14 out of 23 L1 HPK  Leakage Current u Breakdown once

15. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 15 out of 23 L1 HPK  Depletion Voltage u Easy to read

16. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 16 out of 23 L1 HPK  Strip Measurements u Strip leakage

17. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 17 out of 23 L1 HPK  Strip Measurements u Cac @ 1kHz Cp-Q mode

18. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 18 out of 23 L1 HPK  Strip Measurements u Rpoly Inconsistency

19. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 19 out of 23 HPK L2  Only one fully tested #052 u Vdep = 101V at 21C u Leakage 70 nA @ FDV u No pinholes u One leaky channel #317 u Rpoly ~ 2.6 Mohm  TOO HIGH!

20. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 20 out of 23 Irradiation  4 sensors -- 2 L0 2 L1  Run 3 next Friday  Freezer to store sensors between Runs u -18C; 16%  Cold chuck installed, though not turned on yet.

21. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 21 out of 23 Irradiation Preliminary:  Current 0->11->2 u L0_1-1d2 170 times 2.5 times u L0_1-5d1280 times 2.8 times u L1-007ELM800 times 1.7 times u L1-020HPK2200 times 1.6 times  Depletion u L0_1-1d2 26 V -> 18 V -> 21 V u L0_1-5d120 V -> 16 V -> 20 V u L1-007ELM21 V -> 18 V -> 22 V u L1-020HPK126 V -> 121 V -> 116 V

22. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 22 out of 23 ELMA Depletion Uncertainty

23. Sergey Korjenevski KSU The Run IIb Silicon Tracker Workshop, Dec 12-13, 2002 23 out of 23 Last Slide  QT stand u Switch implementation should unify all tests u Input/Output format still an issue s Input file not really a problem s Data Base is  Irradiation studies u Cold chuck has to address high current u Condensation may become a problem  All progress will be reported