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MTest Pixel Telescope – Status Update

MTest Pixel Telescope – Status Update. David Christian January 8, 2008. Detector Status/Plan. Hybrid development complete 11 good hybrids in hand Balance waiting for LANL PO to VTT Delivery Jan – Feb (less schedule risk than before) Module development

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MTest Pixel Telescope – Status Update

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  1. MTest Pixel Telescope – Status Update David Christian January 8, 2008

  2. Detector Status/Plan • Hybrid development complete • 11 good hybrids in hand • Balance waiting for LANL PO to VTT • Delivery Jan – Feb (less schedule risk than before) • Module development • 4x HDI prototype received & tested (12 good parts in hand). • Production purchase requisition is working its way through the FNAL bureaucracy (Feb delivery expected).

  3. Detector Status/Plan continued • Plane/Station development: • First prototype plane being tested (one of three pixel modules mounted so far). • SLINK pcb prototype has been received, stuffed, & testing has begun (Nevis). • Box/Area: • Mechanical design to be coordinated with needs of LHCb VELO (1st users) - waiting for MOU to be signed (momentarily).

  4. Plane prototype on CMM

  5. 1st module ready to test

  6. DAQ Status/Plan • DAQ Hardware/Firmware (Nevis) • PCI interface ~90% complete (trigger/timing hooks not written) • Router ~70% complete (trigger/timing, implementation of merges, integration of DUT?) • SLINK • Design complete. • Prototype fabricated; tests begun. • On the optimistic critical path - hoping to begin testing with a prototype station (or at least a plane) ~ Feb 1.

  7. Software Status/Plan • Online software (FNAL, Syracuse, UNM?) • Core low level routines exist & have been tested. • Need to specify online, including online/offline boundary, write & test code. • On the optimistic critical path • Offline software (Syracuse, FNAL?, UNM?) • Data unpacking • Alignment • Tracking, integration of DUT • On the optimistic critical path • This task has lagged. Strategic decisions to be made in the next 2-4 weeks.

  8. Schedule • Focus on full telescope ASAP. February doesn’t look possible. March?

  9. MTest Telescope • Constructed using “BTeV pixels” • Pixel size = 50m x 400m (600m) • Oriented to provide “precision-x” or “precision-y” measurements.

  10. Layout • Aperture ~ 3.5cm x 3.5cm • 4 – 6 stations y y Beam x x

  11. Nomenclature • Station = 2 planes & an SLINK • Plane = 3 modules mounted on a TPG heat spreader • Module = hybrid pixel detector glued & wire-bonded to a High Density Interconnect (Kapton flex circuit) • Hybrid = pixel sensor bump bonded to 4 FPIX2.1 ASICs

  12. DAQ Overview ROUTER SLINK Trigger/timing signals Twin-ax (sATA) Removable disk Fiber PCI Interface LINUX pc Trigger/timing signals

  13. DAQ • SLINK communicates with 2x3x4=24 FPIX2.1 chips & with ROUTER. • Relays commands & responses • Collects data • Deserialize (digital phase follower) • Time order & construct data blocks w/extended time stamp & chip ID headers • Hierarchy of 2-way data merges

  14. DAQ - continued • ROUTER communicates with PCI interface & SLINKs and (optionally) DUTs • 12 sATA ports, 4 RJ45 ports • Relays commands & responses • Collects data • Hierarchy of 2-way data merges (same logic as SLINK) • PCI Interface communicates with ROUTER & pc • Relays commands & responses • Uses 3 CSRs & 3 ring buffers in the pc main memory (64 MB)

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