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Status report detector production for the testbeam prototype ITEP, Moscow

Status report detector production for the testbeam prototype ITEP, Moscow. CALICE technical review, DESY, February 25, 2005. Contents Status of production and tests Schedule - production and test rates Possible problems Summary. Scintillator production WLS fiber production

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Status report detector production for the testbeam prototype ITEP, Moscow

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  1. Status reportdetector production for the testbeam prototypeITEP, Moscow CALICE technical review, DESY, February 25, 2005

  2. Contents • Status of production and tests • Schedule - production and test rates • Possible problems • Summary • Scintillator production • WLS fiber production • SiPM testing • Tile measurement CALICE technical review, DESY, February 25, 2005

  3. Scintillator production CALICE technical review, DESY, February 25, 2005

  4. Tiles after milling and fiber insertion CALICE technical review, DESY, February 25, 2005

  5. 12x12 cm2 tile after groove milling CALICE technical review, DESY, February 25, 2005

  6. WLS fiber production CALICE technical review, DESY, February 25, 2005

  7. Fibers for 3x3 cm2 tiles prepared to assembly CALICE technical review, DESY, February 25, 2005

  8. Heater for fiber thermal bending CALICE technical review, DESY, February 25, 2005

  9. Fiber ends after cutting CALICE technical review, DESY, February 25, 2005

  10. SiPM testing CALICE technical review, DESY, February 25, 2005

  11. Summary of SiPM test CALICE technical review, DESY, February 25, 2005

  12. Summary of SiPM parameters measured with ITEP test bench numbers 504-786 – 20 MΩ SiPM’s, other – 2 MΩ ones CALICE technical review, DESY, February 25, 2005

  13. Tile test Set HV according to SiPM test and temperature measurement Measurement of MIP response with help of Sr90 source LED spectrum gives information about SiPM gain So, one may deduce the number of pixels in MIP peak The test bench is on set up stage Electronics is ready. Small mechanical parts need to be installed CALICE technical review, DESY, February 25, 2005

  14. Production schedule We have to have additional shifts in tile testing CALICE technical review, DESY, February 25, 2005

  15. Possible problems We foresee problems with shipment of tiles to DESY because we do not have any agreement with DESY verifying our collaboration in testbeam prototype production. We need to issue an appendix to the existing DESY-ITEP agreement describing our activity Will be solved soon CALICE technical review, DESY, February 25, 2005

  16. Summary 1.Production rate of scintillators and fibers are consistent with our schedule. 2.Test bench for SiPM selection is operational. 3.Automatic test bench for assembled tiles quality control is on set up stage. We expect to start with full rate in few weeks. 4.To solve foreseen difficulties with ready detectors shipment an agreement between DESY and ITEP on prototype construction will be solved soon CALICE technical review, DESY, February 25, 2005

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