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Status report

Status report. IEKP – University of Karlsruhe Alexander Furgeri. QTC. Optical inspection of (16/40) KA-Set 9 (2.) W5B (5/5) KA-Set 10/1 W5B (3/8) KA-Set 11/1 W6B (4/10) KA-Set 11/2 W6B (4/4) Electrical measurements of KA-Set 9 (2.)

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Status report

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  1. Status report IEKP – University of Karlsruhe Alexander Furgeri Sensor meeting

  2. QTC • Optical inspection of (16/40) • KA-Set 9 (2.) W5B (5/5) • KA-Set 10/1 W5B (3/8) • KA-Set 11/1 W6B (4/10) • KA-Set 11/2 W6B (4/4) • Electrical measurements of KA-Set 9 (2.) • IV & CV of KA-Sets 10 to 11 (18/35) • Summary • IQC Sensor meeting

  3. Optical inspection KA-S10/1 Batch 31850 W5B (3/8) 9.1.2003 KA-S9 Batch 32965 2. Delivery 26.11.2002 W5B preliminary KA-S11/2 Batch 39728 W6B 9.1.2003 KA-S11/1 Batch 32961 W6B (4/10) 9.1.2003 preliminary Sensor meeting

  4. Impressions of opt. inspection ? IV&CV OK ! Sensor meeting

  5. Summary of optical inspection • Scratches ! On surface and on backplane ! • many at the same region of the sensors (handling facility ?) • some are really deep ! • Antistatic sheets to small for W5B • No -stamps on backplane • No sensor failed Sensor meeting

  6. IV-curves of KA-Set 9 (2.) KA-S9 Batch 32965 2. Delivery 26.11.2003 No failures ! Sensor meeting

  7. CV-curves of KA-S9 KA-S9 Batch 32965 2. Delivery 26.11.2003 Sensor meeting

  8. Strips of KA-S9 No failures ! Sensor meeting

  9. IV-Curves of KA-Set 10/2 W5B Delivered 9.1.2003 2 failures ! Sensor meeting

  10. CV-curves of KA-Set 10/2 Sensor meeting

  11. IV-curves of KA-Set 11/1 W6B Delivered 9.1.2003 No failures ! Sensor meeting

  12. CV-curves of KA-Set 11/1 Sensor meeting

  13. IV-curves of KA-Set 11/2 W5B Delivered 9.1.2003 1 failure ! Sensor meeting

  14. CV-curves of KA-Set 11/2 Sensor meeting

  15. Summary of QTC preliminary Sensor meeting

  16. IQC • Status of cyclotron: • Mechanical part ready • Electrical part problematically • Old components (1962) • Many improvements (automatic temperature control, flux measurement ) • Comparison of Cint-ramps between Louvain and Karlsruhe Statement of main technician: „Ask in 2 weeks“ Sensor meeting

  17. Cint-bumps • Effect only on irradiated ST-mini´s seen • Caused by low Rint ( that´s the problem) • 1 mini sent to Louvain • 3 mini´s sent from Louvain to us, but storage over christmas (3 weeks) at unknown temperature Sensor meeting

  18. Comparison KA-Louvain KA-mini irradiated with p Same behavior! But different values !? Karlsruhe Louvain Strip 92 Sensor meeting

  19. Cint ramps 1 1 8 8 Cint Dissipation Sensor meeting

  20. Rint ramps Maximum of Cint corresponds to Minimum of Rint 1 8 Sensor meeting

  21. Ileakage ramps Profil from 400 V Udep Sensor meeting

  22. Cint ramps (2) In middle of sensor „constant“ 17 27 Sensor meeting

  23. Rint ramps (2) 1 27 In middle of sensor „constant“ Lowest value ~60MOhm Sensor meeting

  24. Ileak ramps (2) Ileak-bumps are no effect of changing temperature during measurement -11°C -10°C -12°C Sensor meeting

  25. Summary of bumps • No temperature effects • Still in specs @400V • „Calibration“ between KA and Louvain • Same behaviour • Different absolute values (due to LCR-mode ?) Sensor meeting

  26. Outlook • Comparison between Cp-D mode and Cp-Rp mode in KA • Measurement of Louvain irrad. Mini in KA • Comparison of Rint ! • Comparison of Rpoly increase (see Eric) Perhaps irradiations ? Sensor meeting

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