1. Tobias Haas DESY 7 November 2006 A Pixel Telescope for Detector R&D for an ILC Introduction: EUDET Introduction: EUDET Pixel Telescope Pixel Telescope Sensors Sensors Readout Readout Simulations Simulations Mechanics Mechanics Summary Summary

2. 7 November 2006Tobias Haas: Pixel Telescope EUDET Project Build INFRASTRUCTURES for LC R&D Build INFRASTRUCTURES for LC R&D

3. 7 November 2006Tobias Haas: Pixel Telescope Testbeam Infrastructure (JRA1) Provide a large bore high field magnet Provide a large bore high field magnet Provide beam telescope with: Provide beam telescope with: Very high precision ( < 3µm precision even at lower energies) Very high precision ( < 3µm precision even at lower energies) High readout speed ( frame rate > 1 kHz) High readout speed ( frame rate > 1 kHz) Easy to use (well defined/described interfaces) Easy to use (well defined/described interfaces) Wide range of conditions for devices under test (cooling, positioning, magnetic field Wide range of conditions for devices under test (cooling, positioning, magnetic field Major uses Major uses Pixel sensors Pixel sensors Large volume tracking devices Large volume tracking devices Initial setup @ DESY Initial setup @ DESY < 6GeV/c electrons < 6GeV/c electrons Transportable Transportable Hadron beams at FNAL or SLAC Hadron beams at FNAL or SLAC

4. 7 November 2006Tobias Haas: Pixel Telescope EUDET JRA1 Institutes EUDET comprises 21 partners and 9 associates from 3 continents EUDET comprises 21 partners and 9 associates from 3 continents JRA1: JRA1: Bristol (UK) Bristol (UK) CNRS-IRES Strasbourg, CEA (France) CNRS-IRES Strasbourg, CEA (France) DESY, MPI Munich, Bonn, Mannheim (Germany) DESY, MPI Munich, Bonn, Mannheim (Germany) Genève, CERN (Switzerland) Genève, CERN (Switzerland) INFN (Italy) INFN (Italy) Warsaw (Poland) Warsaw (Poland)

5. 7 November 2006Tobias Haas: Pixel Telescope PCMAG Large bore Large bore D ~ 86 cm D ~ 86 cm L ~ 100 cm L ~ 100 cm B ≤ 1.2 T B ≤ 1.2 T Superconducting Superconducting B ≤ 1.2 T B ≤ 1.2 T Thin Thin 0.2 X 0 0.2 X 0 Field map Field map beam KEK, DESY B

6. 7 November 2006Tobias Haas: Pixel Telescope Beam Telescope Phase 1 “Demonstrator” Phase 1 “Demonstrator” First test facility available quickly First test facility available quickly Established pixel technology with analog readout Established pixel technology with analog readout Phase 2 “Final Telescope” Phase 2 “Final Telescope” Fully digital readout with integrated CDS and sparsification Fully digital readout with integrated CDS and sparsification Ready end 2008 Ready end 2008

7. 7 November 2006Tobias Haas: Pixel Telescope Reference Plane Sensors Demonstrator: Mimo*3M Demonstrator: Mimo*3M Developed for Star micro vertex detector upgrade Developed for Star micro vertex detector upgrade AMS 0.35 OPTO process AMS 0.35 OPTO process 4 sub-arrays with 64x256 pixels: 4 sub-arrays with 64x256 pixels: 30 x 30 µm 2 pitch, active are 7.7 x 7.7 mm 2 30 x 30 µm 2 pitch, active are 7.7 x 7.7 mm 2 Frame readout: 1.6 ms Frame readout: 1.6 ms First wafers delivered, currently being tested First wafers delivered, currently being tested CNRS-IRES, Strasbourg Final Telescope: Mimosa16++ Final Telescope: Mimosa16++ Fast column-parallel architecture Fast column-parallel architecture Integrated CDS and discriminator Integrated CDS and discriminator Active area 2 – 4 cm 2 Active area 2 – 4 cm 2

8. 7 November 2006Tobias Haas: Pixel Telescope R/O: EUDET Data Reduction Board Mother board: Mother board: Online calculation of pixel pedestal and noise Online calculation of pixel pedestal and noise Based on ALTERA Cyclone II FPGA Based on ALTERA Cyclone II FPGA 1 Analog mezzanine card: 1 Analog mezzanine card: 4 independent signal processing and digitizing stages 4 independent signal processing and digitizing stages 1 Digital mezzanine card: 1 Digital mezzanine card: Detector control and status Detector control and status USB 2 link USB 2 link Adoptable to a large range of different sensors Adoptable to a large range of different sensors Zero-suppressed and Full frame readout available Zero-suppressed and Full frame readout available Boards are available and are currently under test Boards are available and are currently under test INFN

9. 7 November 2006Tobias Haas: Pixel Telescope DUT and DAQ Integration Trigger Logic Unit: Trigger Logic Unit: Readout of DUT and telescope independent Readout of DUT and telescope independent Integrate via trigger, busy, reset Integrate via trigger, busy, reset DUT readout provided by users DUT readout provided by users Bristol Genève

10. 7 November 2006Tobias Haas: Pixel Telescope Telescope Precision: Simulations Analytic method for track fitting has been developed and verified with GEANT4 Analytic method for track fitting has been developed and verified with GEANT4 Various two-arm configurations have been investigated Various two-arm configurations have been investigated Results: Results: One HiRes plane (σ < 1.5 µm) is needed close (d < 5mm) to DUT One HiRes plane (σ < 1.5 µm) is needed close (d < 5mm) to DUT Optimum telescope configuration depends strongly on beam and DUT parameters Optimum telescope configuration depends strongly on beam and DUT parameters At DESY (6 GeV): 6 planes, 1 HiRes plane and two long arms At DESY (6 GeV): 6 planes, 1 HiRes plane and two long arms Warsaw

11. 7 November 2006Tobias Haas: Pixel Telescope Telescope Mechanics DUT Actuator: DUT Actuator: External XYФ-Table with “long arm” External XYФ-Table with “long arm” Accuracy: < 10µm, Repeatable: < 0.5µm/axis Accuracy: < 10µm, Repeatable: < 0.5µm/axis Initial mechanical alignment: < 100µm Initial mechanical alignment: < 100µm Beam-based final alignment Beam-based final alignment Magnetic Field: Magnetic Field: Only boxes 1 & 2 are suitable Only boxes 1 & 2 are suitable Boxes 1 & 3: Reference planes Boxes 1 & 3: Reference planes Movable along Z Temperature controlled Box 2: DUT Box 2: DUT Cooling (> -40 o C) Walls to Boxes 1&2 removable

12. 7 November 2006Tobias Haas: Pixel Telescope Telescope Alignment Test alignment procedure using telescope simulation Test alignment procedure using telescope simulation 50k 6 GeV/c electrons from Geant 4 50k 6 GeV/c electrons from Geant 4 Millipede program (V. Blobel) Millipede program (V. Blobel) Inject artificial shifts of reference planes Inject artificial shifts of reference planes Questions: Questions: How well can the shifts be recovered? How well can the shifts be recovered? What statistics are needed for an alignment What statistics are needed for an alignment How much redundancy (planes) is needed? How much redundancy (planes) is needed?

13. 7 November 2006Tobias Haas: Pixel Telescope Access to the Facility This will be an open general purpose facility with these ingredients: This will be an open general purpose facility with these ingredients: DESY test beam DESY test beam Large bore high field magnet Large bore high field magnet Pixel telescope Pixel telescope Access is via the EUDET “Transnational Access” (TA) mechanism: Access is via the EUDET “Transnational Access” (TA) mechanism: Written applications to EUDET Written applications to EUDET Review by the EUDET review committee Review by the EUDET review committee TA not only comprises access to the facility but also some travel funds. TA not only comprises access to the facility but also some travel funds. Please contact the EUDET coordinator (J. Mnich, joachim.mnich@desy.de) or myself (T. Haas, tobias.haas@desy.de) Please contact the EUDET coordinator (J. Mnich, joachim.mnich@desy.de) or myself (T. Haas, tobias.haas@desy.de) joachim.mnich@desy.de

14. 7 November 2006Tobias Haas: Pixel Telescope Summary A general purpose test beam infrastructure is currently being constructed within EUDET: A general purpose test beam infrastructure is currently being constructed within EUDET: 6 GeV/c electron test beam @ DESY 6 GeV/c electron test beam @ DESY Large bore high field magnet Large bore high field magnet High precision fast beam telescope. High precision fast beam telescope. Demonstrator setup will be available mid 2007 Demonstrator setup will be available mid 2007 Final facility will be available end 2008 Final facility will be available end 2008 Access to the facility is via the EUDET TA review mechanism Access to the facility is via the EUDET TA review mechanism Open to everybody Open to everybody