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News from Tracking

News from Tracking. R. Meier Univ. Tübingen. PANDA outer tracking - status. Towards a straw tube tracker prototype. Outer tracking subgroup. Spokesperson: P. Gianotti. JINR Dubna - Russia B. Morosov et al. M. Sapozhnikov et al. GSI Darmstadt - Germany A. Sokolov et al.

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News from Tracking

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  1. News from Tracking R. Meier Univ. Tübingen PANDA outer tracking - status Towards a straw tube tracker prototype

  2. Outer tracking subgroup Spokesperson: P. Gianotti • JINR Dubna - Russia • B. Morosov et al. • M. Sapozhnikov et al. • GSI Darmstadt - Germany • A. Sokolov et al. • INFN Frascati - Italy • P. Gianotti et al. • INFN Ferrara - Italy • D. Bettoni et al. • Jagiellonan Univ. Krakow • J. Smyrski • TU München - Germany • B. Ketzer et al. • Universität Tübingen - Germany • R. Meier et al. • + +

  3. Joined Research Project Proposal for I3HP JRA on the development of high speed gas detectors J. Wessels et al. Approved

  4. Joined Research Project Proposal for I3HP JRP on the development of high speed gas detectors J. Wessels et al. Approved

  5. Physics – charged particle tracking Charmonium States: Formation Charmed Hybrids: Production

  6. PANDA tracking Mini drift chambers Cylindrical tracker Microvertex detector

  7. PANDA tracking Requirements: Vertex resolution Track resolution Momentum resolution Detection efficiency Material budget Rate capability Radiation hardness Trigger capability Space budget Heat budget Physics benchmarks Other subdetectors Beam/Target conditions

  8. Forward tracking Mini drift chambers 2 Prototype designs Krakow J. Smyrski Dubna M. Sapozhnikov INTAS application

  9. Krakow MDC prototype

  10. PANDA central tracker STT TPC • Straw tube tracker • Spacial resolution: 150 mm (r,f) 1mm (z) • Rate capability • Existing model: • WASA straw tube tracker • 2LT Trigger capability • Structure material • Not usable as Cerenkov medium • Amplifiers on tubes • Number of tubes = number of cables • Time projection chamber • Spacial resolution 100 mm (r,f) 1mm (z) • Low material budget • Drift volume transparent • dE/dx information for low mom. PID • No existing design capable of continous • beam operation • New developments required: GEM readout • Trigger capability? • Single event reconstruction?

  11. Towards a PANDA cylindrical tracker Cylindrical tracker Physics Requirements Benchmarks Feasibility STT TPC GEM readout prototype Simulation group design Reality WASA based design Detailed discussion: Next PANDA meeting

  12. Straw tube tracker for PANDA • 9000 straw tubes. • 15 double layers • 2-14 layers are skewed with angle between 4-9o • tube length – 1.5 m • tube diameters 4, 6, 8mm • inner radius - 15 cm. • outer radius – 42 cm.

  13. The WASA mini drift chamber 25/26-Aug Mini subgroup meeting at Uppsala 1738 Straws 4,6,8 mm 17 Layers Inner/outer radius 4/20 cm Straw length 40 cm

  14. The WASA mini drift chamber Design position resolution: 150mm/1.5mm Mechanical precision and stability: ‘massive‘ support structures 1.2 mm Be/Al Outer cover 1% rl Front/Back wire mounting rings >2% rl 1.2 mm Be Beam pipe 0.3% rl Sensitive volume 0.5% rl Straws Pellet Beam

  15. WASA-based design for PANDA? Design parameters included in simulation (A. Sokolov) Now Maybe? Scintillator barrel DIRC Outer cover Straws Inner cover MVD Beam pipe

  16. Towards a PANDA cylindrical tracker Physics benchmarks Other subdetectors req. Space budget WASA based design Readout design Mechanical structure Prototypes Rate capability Heat budget Space budget Trigger capability Pressure stabilization Carbon fiber structure Foam structure Low density STT Feasibility TDR

  17. Self-Supporting Straws

  18. Self-Supporting Straws

  19. Self-Supporting Straws Wire position fixed by 1mm thick Cu-coated belt Coming up: tracking, position resolution tests

  20. PANDA Prototypes • Objectives: • Wire material • Straw material • Gas mixture • Straw geometry • Electronic coupling/readout • gravitational sagging (spacers?) • mechanical precision • WASA-based construction • Self-supporting construction • Radiation hardness/lifetime • In-beam position resolution • Possibilities: • Lab single straw tests • WASA based prototype using • existing material and installations • Self-supporting prototype based • on Jülich construction • Cosmics tests • MIP tests (GSI, PSI) • Timeline? • Prototype definition end of 2003 • Prototype design/construction first half 2004 • Prototype tests second half 2004

  21. Tracking subgroup meeting: Sunday, 7-September 8:30 Room 4.140 • Agenda: • Central tracking • STT vs. TPC • Simulations • STT prototype definition • Timeline • Forward tracking • Prototype plans • Timeline • Funding applications

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