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Thermal Mock-Up for Belle.II VXD: Plans and Status

This document discusses the plans and current status of the thermal mock-up for the Belle.II VXD. It includes details about the test setup, access to the XFEL CO2 Cooling System, and the design and production schedule for the mock-up. The document also mentions the ongoing tasks and team members involved in the project.

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Thermal Mock-Up for Belle.II VXD: Plans and Status

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  1. Belle II VXDStatus and plans for thermal mock-up SuperKEB / Belle II Session KEK@DESY Meeting 19.-20.03.2012 SVD Configuration (Markus Friedl)

  2. Thermal Test Setup in DORIS Hall • we have access to the XFEL CO2 Cooling System built for AGIPD detector • courtesy of Heinz Graafsma • there are some constraints • system not identical to MARCO / IBBelle • simplified control system • Experience will tell if we need to build our own system • Setup has to stay in DORIS hall Test Setup Support XFEL AGIPD Lab XFEL CO2Cooling System DORIS Access Gas Containment

  3. Thermal Test Setup

  4. XFEL CO2 Cooling System XFEL CO2 Cooling System CO2 Distributor

  5. CO2 Transfer line production 4 x 8m PXD lines

  6. Add heavy metal here Add more if not too heavy 6mm gap for cabling VXD Cold Box (Dry Volume) Request by BG simulation Otherwise BG showerreach PXD directly gap for Cooling pipe/ BPM cable VXD design heavymet(Tanaka)

  7. VXD Cold Box Thermal Mock Up define boundary conditions for the real dry volume -> design Cold Box

  8. Test Setup Cold Box Thermal Mock Up (Dry Volume) VXD dry volume end caps PXD CO2 lines Beam pipe heatingline Beam pipe coolinglines

  9. Beam Pipe Thermal Mock Up Stainless Steel Aluminium Paraffin Chiller 6 liter Paraffin Oil

  10. PXD Thermal Mock Up End flange prototypes received from Karlsruhe (3 of 4)

  11. B2GM 16.3.12 New concept for cooling pipe fixation SVD Thermal Mock Up • Geometry of SVD almost frozen (except layer 3) • Write-up of requirements and design of cooling system in preparation • AnneKatrinFrankenberger • Still have not yet decided which level of sophistication adequate for thermal mock-up • some work sharing with Cracow intended • e.g. CFRP ribs etc. Simplified ladder structure

  12. Closed-loop CO2 Cooling Plant(Markus Friedl) Developed commonly by PXD and SVD together with experts from CERN

  13. Production Schedule for Thermal Mock Up • most topics are extended

  14. DESY Belle II Task / Team ongoing Tasks: design and production of Thermal VXD Mock-Up design and test of cooling strategy design and production of the VXD Cold Box (Dry Volume) optional Tasks: design and production of VXD installation Mock-Up design and test of VXD infrastructure integration Team: Carsten Niebuhr Team Leader / Communication KarstenGadow Mock-Up Design / Test Robert Volkenborn Mock-Up Design / Simulation 1 Technician ( March ?) Mockup Production work has started and increase in speed!

  15. Backup for Discussion

  16. PXD Cooling (Kiesling)

  17. PXD Layout (Kiesling)

  18. SVD (Markus Friedl) Sensor underneath flex circuit End ring (support) APV25 chips Origami ladder Pitch adapter bentaround sensor edge Cooling pipe

  19. SVD Readout Chain (Markus Friedl) Finesse Transmitter Board (FTB) FADC+PROC 1902APV25chips ~2mcoppercable Junctionbox ~10mcopper cable Unified opticaldata link (>20m) COPPER Front-endhybrids Rad-hardvoltageRegulators Analog level translation,datasparsificationandhit time reconstruction Unified Belle IIDAQ system

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