Clamp Prototype Install and Schedules - PowerPoint PPT Presentation

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Clamp Prototype Install and Schedules

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  1. Clamp Prototype Install and Schedules RIKEN/RBRC Itaru Nakagawa

  2. APR Deadline : Feb. 8 • Muon Arm Upgrade for W boson Detection (含むAbsorber effect、S/N) - ラルフ • Muon Trigger Performance (efficiency w/ cosmic等Run10データ解析)- 深尾- MuTr Cross Talk and Recapacitation effect - 今津- Recap clamp R&D - ケンタロー、中川

  3. Clamp Schedule Dry Air Cover Prototype-1 Delivery Install Delivery 50 more Clamps Install & Test Delivery 300 Clamps Install Supply Parts

  4. Road To Be Approved Clamp Install • Evaluate X-Talk Quench Effect (Jan) -> Tsutomu’s Code • Prove HV Performance (~July) • Budget • Production Schedule to be fit in by End of October • Scaffold Construction

  5. Cramp Production Schedule • 60個(2ヶ月) • 発注:4月末 -> 納品6月末 • 320個(2〜4ヶ月?) • 発注:6月〜8月->納品9月+10月末(分納) • インストール4〜8週間 6月のパフォーマンスを確認後プロダクションへ (遅くて7月第一週) Bottom Line • 部品調達2〜3週間を6月中に依頼すれば間に合うかも? • クランプ取り付けのユーティリティーは満足できるレベル。 • プリント基板はFixでよいか?基盤の製作を前倒しすればさらにspeed up。 • 変更の可能性がある部分は • プローブ(ピン/ゴム) • コーティング剤の材質や塗り方? • 電圧読み出しプローブ

  6. Octant-8 Clamp Install Octant 8 3810 3810 3810 3811 3811 3811 3812 3812 3813 3813 1-pin type 4-pin type

  7. Installed Clamps (Octant-8)

  8. Octant-7 Clamp Install Octant 7 3710 3710 3710 3711 Dead in Run9 Wire 192-223 But fixed in Run10 3711 3711 Conductive Rubber type 3712 3712 3713 3713

  9. Installed Clamps (Octant-7)

  10. Clamp Prototype Install Summary • 3 types of clamps (3 each are installed to North Station-3, Octant-7 and 8, Gap-0. • Nearly 100% electrical contacts were achieved by the clamps without removing coating. -> Clamp works well! • Will test with HV up to 1.5k with Ar/Co2 gas this week before closing the hatch. • Observing relieved cross talk effect may be difficult because of partial coverage (only 30% of all anode wires in Oct-8, 15% in Oct-7).

  11. Improving HV performance • Better Coating • Dry air cover to Station-3 • need to evaluate cost-effectiveness • Can be kept as back up if the prototype clamps behave poorly against HV

  12. coating • Turned out present anodes are mostly exposed to air. The existing coating is not isolating HV circuit from air well. • Redo coating with higher viscosity type

  13. Dry Air Cover Support

  14. Dry Air Cover • Mechanical Design by REPIC • First 2~3 Prototypes Delivery by Dec.28? • Install in Maintenance Day Dry Air Line Available @Oct8

  15. Please Sign Up! Expert Shift MuTrig-FEE your_ccount@rcf2:/phenix/WWW/run/11/contacts/mutrg_experts.html Edit by Yourself

  16. Please sign up! Expert Shift MuTr

  17. Muon Trigger Event Display Developed by Tsutomu Should Add RPC?

  18. Task List • Run Plan • Special Data Taking • Low B-field (Yoshi) • Zero suppression off run (different luminosity?) How many statistics needed? • MuTr HV Scan (Cosmic/Beam?) • Dump Important parameters into Database (Yoshi+Katsuro) • Threshold, Latency, BCLK window, Logic, (Delta_s?, LUT?) • Optimization of Parameters (Yoshi+Katsuro+Itaru) • Threshold .vs multiplicity • Logic • BCLK Window • Low Level Online Monitor (Katsuro) • Stability monitor (Seoul) • Low Level • Physics (J/psi) mass width, position, S/N, etc… • Semi-Online Track Monitoring (Yoshi?) • Rejection power .vs rate • Efficiency .vs rate • Efficiency map