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Straw Tracker Workshop at Dubna: Achievements, Challenges, and Future Plans

Learn about the progress of the Straw Tracker TD, key achievements, challenges faced, and the proposed plan for improvement covered in the recent workshop at Dubna. Explore the importance and performance requirements of the Straw Tracker in the NA62 experiment, along with the developments in Straw Chamber technology. Discover the boundary conditions, key factors for workshop discussions, and the strategies for optimizing the design and construction of the tracker.

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Straw Tracker Workshop at Dubna: Achievements, Challenges, and Future Plans

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  1. Views from Technical Coordination Ferdinand Hahn Straw Workshop / Dubna

  2. Overview • The Straw Tracker • Straw Tracker TD • Achievements /Challenges (My View) • Boundary conditions • Key Factors to be addressed in the workshop (My View) • Closing Remarks Straw Workshop / Dubna

  3. STRAW Tracker TD • The TD has received high attention in the last SPSC. • The Straw Tracker has accumulated some delay and this was justified. However, it is now the time to catch up this delay. • My proposal: target revised draft for April 2010. Straw Workshop / Dubna

  4. The Straw Tracker is en exceptional asset for NA62 Detector Requirements Detector Performance Kinematical rejection relies on: p - Momentum resolution σ(P)/P = 0.33% p - Angular resolution : 10μrad (@10GeV) to 20 μrad (@60GeV) Decay Vertex Extrapolation σ(CDA)≈ 1mm • Ultra light (0.2% of X0 per layer) (no beam windows and no surrounding gas) • High accuracy (130mm per View) • High efficiency • Need low noise environment to avoid ghost tracks The Straw Tracker is a premium device and crucial for the experiment. Straw Workshop / Dubna

  5. Straw Chamber Development My View Achievements Challenges Relate welding parameters to joint stability and penetration to exclude ruptures. Optimize coating + joint (target factor 3 improved leak rate) Optimize and match with final electronics. X-check ageing. Detailed design optimisation: Get facts->choose best • Straw assembly technique (welding) is established. QC parameters are proposed. • Straw permeation and leaks (upper limit 1.0 mbar cm3/min) • Chamber performance parameters shown fully satisfactory in test beam. • Chamber Design + Geometry/ accuracy achieved in prototype . Congratulation ! Congratulation ! Top Priority Straw Parameter (welding, materials, permeation,... Straw Workshop / Dubna

  6. Boundary Conditions • NA62 Schedule: -> Commissioning Run June 2012 • Resources: • New Fellow starting in April 2010. • New Technical Student (electronics) starting ? • Target: optimal efficiency and optimal work-share • Joint Project between Dubna and CERN • Define suitable share of construction work Straw Workshop / Dubna

  7. ECN3 Installation Planning preliminary Straw Workshop / Dubna

  8. Key Factors to be addressed in the workshop My View • Design optimisation: • Analyse outcome from Design Review • Priorities problems and actions • Define action plan with clear deadlines and responsibilies. • Agree on one solution (The best one!) • Decide Who does What: • Define WP distribution + assign responsibilities • The WP distribution has to be match with the resources available (optimize the sharing). • Transfer the expertise and knowledge where needed. • No re-development... • Focus on Teamwork Straw Workshop / Dubna

  9. Enjoy Dubna ! • The work shop is an excellent initiative. • The solutions are within the range of vision • Let’s work out the plan.... Straw Workshop / Dubna

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