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TRD Production at GSI

TRD Production at GSI. Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005. Overview. - Status L5C1/L4C1 - Glue System - Testing the Properties - Summary. Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005. Production Status L5C1.

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TRD Production at GSI

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  1. TRD Production at GSI Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  2. Overview - Status L5C1/L4C1 - Glue System - Testing the Properties - Summary Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  3. Production Status L5C1 30 Radiators Frames glued21 Radiator Frames wired 23 Padplanes glued 2 Padplanes bad Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  4. Testing Status L5C1 19 Moduls tested with Fe55 SourceClosed with Tape Gas ArCO2 70/30 HV-Anode 1620 V, HV-Drift -2000 VO2 Concentration below 30ppm, Flush 40l/h, 8hup to know Dark Current < 1nA Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  5. Testing Status L5C1 Finally glued Chamber 2 Modul tested with Roentgen Source Gas ArCO2 70/30 HV-Anode 1620 V, HV-Drift -2000 VO2 Concentration below 10ppm, Flush 40l/h, 8hup to know Dark Current < 1nA Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  6. Production Status L4C1 11 Radiators Frames glued 5 Radiator Frames wired 5 Padplanes glued Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  7. Testing Status L4C1 1 Moduls tested with Fe55 SourceClosed with Tape Gas ArCO2 70/30 HV-Anode 1620 V, HV-Drift -2000 VO2 Concentration below 30ppm, Flush 40l/h, 8hup to know Dark Current < 1nA Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  8. Problem with Glue System - Used Araldit AW 106/AW116 with Hardener HV953U - Sticky surface after curing time - Problem in Producing Hardener HV 953 U since 2004 Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  9. - Stop the TRD Production Mechanical and electrical Properties Chemical Composition was changed - Get a Charge of an modifcated Hardener to test the mech. and electr. Properties Decision Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  10. Test mechanical Properties - cured Glue min. 24h under different climatic Conditions Shore Hardness is 60 - Observed Different Surface Quality, it depends on the Huminidity and the retention time in Air Humidity rel. 2% - 50% Temperature 23 º C – 40 º C one Sample cured in Nitrogen Atmosphere Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  11. Test Electrical Properties - under different Climatic Conditions Volume Resistivity 300 G – 8 T Ohm cm Humidity rel. 2% - 50% Temperature 23 º C – 40 º C one Sample has cured in Nitrogen Atmosphere Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  12. CONCLUSION - Orderd and distributed Hardener to finished the TRD Production - Additional Ageing Test Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  13. SUMMARY - Delay of 6 weeks in the Production Scale - 4 L5C1and 4 L4C1 finished to shipped to HD End of October - Production Mode to build 2 TRD Chambers / 7 Working Days Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

  14. Thank youSandra Schwab, Anja B. Steffen Gert Augustinski, Andre Radu, Heinz W. Daues and all the Students Joerg Hehner TRD Collaboration Meeting Bucharest 26.09.2005

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