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Onsite Status

Onsite Status. RIKEN/RBRC Itaru Nakagawa. OASys Light Source Spacer. New Spacer . Filed off screw head. Light Spot with/without the Spacer. w/o spacer. w/o spacer. 1.3m m. w / spacer. 1.1m m. w / spacer.

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Onsite Status

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  1. Onsite Status RIKEN/RBRC Itaru Nakagawa

  2. OASys Light Source Spacer

  3. New Spacer Filed off screw head

  4. Light Spot with/without the Spacer w/o spacer w/o spacer 1.3mm w/ spacer 1.1mm w/ spacer 100 pixels shift out of 650 pixels observed in X direction. May be acceptable.

  5. OASys DAQ System Cannot check South OASys. We have to wait until all SMM to be back on beam line

  6. Thermocopules to North St-1

  7. OASys Fast Offline mk mklist.pl -> File list Fitting result Log files sum_stat.dat file i/oのlow level関数で新しいgccライブラリと非互換問題 -> fopen/freadで解決

  8. Recapacition Completed South Station-1 Gap-1

  9. HV Test • Station-1 Gap-1 are all OK. • Some trips in Station2 and 3

  10. Recap Clamp Installation

  11. Recap Clamp Installed to Gap-2

  12. Recapacitation Clamps • What do we do with coating? • Physically scrape off -> Need develop tool • Chemically remove -> Under investigation • Heat it up -> Soldering Iron • Inspection of the contact • Fiber Scope • Voltmeter

  13. Fiber Scope Small diameterf=6mm Short Focus 5 ~ 10 mm Side mirror ~54,000Yen

  14. Penetration Power of Coating クリップ型の開発史 Remove Coating Coating after installation

  15. Summary Recap Clamps • Alignment -> Spacer works OK. • Visual Check -> Fiber Scope • Contact Check -> Voltmeter new design • Conductive Rubber • Coating Removal • Re-coating after installation -> Splay type works? • Folk Type • Penetration power? • Pre-coating on recap clamp works?

  16. Remaining Tasks • Further contact test of the clamp with voltmeter. • Pre-coating the recap clamp • Diagnose OASys Camera N2 • Station-2 Terminator install • Toggle switch South St.2 ADTX -> but no power • St-1 terminator install (Mike next week) • OASys light source install (Mike next week) • South OASys check

  17. Re-run Muon Trigger South fibers • Re-run MuTR cables • South OASys Check • South St-2 Oct7 ADTX threshold test Oct 27 – 29 RBRC Review

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