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Re-Cap

Re-Cap . Itaru Nakagawa RIKEN/RBRC. Recap To Do List. Frammablility of Conductive Rubber Surface Coating & Remover Solvent Folk Type Prototype (REPIC) Station-3 Mock-up (REPIC) Mechanical Structure of clamp Cross Talk Measurement at Test Bench Capacitance Optimization

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Re-Cap

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  1. Re-Cap Itaru Nakagawa RIKEN/RBRC

  2. Recap To Do List • Frammablility of Conductive Rubber • Surface Coating & Remover Solvent • Folk Type Prototype (REPIC) • Station-3 Mock-up (REPIC) • Mechanical Structure of clamp • Cross Talk Measurement at Test Bench • Capacitance Optimization • Soldering Training • Etc..

  3. Conductive Rubber Type

  4. 難燃性シリコンゴムモデル 5cm x 5cm x 3mmt Sample 入手 3mm x 3mm x 3mm (within 0.1mm precision) のカットは可能か？

  5. 導電グルー　信越化学　KE3492 サンプル50g 入手。導電ゴムに強結合する導電グルーはないので接着力はあまり強くない 前回使用した銀ペースとは絶版で、入手困難。可能性は秋葉のジャンク屋ぐらいか？

  6. Folk Type • Issues: • Penetration power on 25micron thick palyrene coating • Flexibility against structure in transverse direction on the surface of pads.

  7. PHENIXHV治具検討（2列型）　　　　　　　　　　　　　　（φ0.5）PHENIXHV治具検討（2列型）　　　　　　　　　　　　　　（φ0.5） 縦方向の「反り」により王冠型は一点しか接触しなかった。その改良として 鍬型を考案しているので、２列案は却下。

  8. PHENIXHV治具検討（φ1.0） f0.5プローブが十分な強度がでなければ考慮する。

  9. Flexibility Solution • Spring Probe: • Spring probe is not strong enough • More segmentation between probes • Further segmentation per each probe (See next page)

  10. North Station-3 用（接続面裏側用） 使用検討プローブ プローブを半田する際に空けておく隙間

  11. Palyrene Coating • Folk型タイプの貫通力のテストのため、palyreneコーティングの基板が必要。 • 林栄のテスト用基板にコーティング(25,50ミクロン）を施す業者を探す。 • 林栄で検討中。可能らしいが詳細をつめる必要有り。 • 日本パリレンに見積もり依頼中。１バッチ１０万以上。 • 日本コーティング工業株式会社に問い合わせ中

  12. Test Bench Bottom line is to evaluate X-talk effect quantitatively.

  13. Pulse height vs strip Tsutomu’s measurement w/o anode termination w/ anode termination This measurement(1) ADC[2]-ADC[0] (Strip==21) && (ADC[2]-ADC[0]>1000) Now x-talk is clearly visible. However, dispersion seems larger. This may be originated from event selection.

  14. Reproducibility of Measurement 5/25 data002.cdat 5/25 data003.cdat

  15. Consistency of Measurements 5/25 data002 5/25 data003 5/26 data002 Measurements are fairly consistent and reproducible.

  16. With / With Out Recap Comparison There seems to be slightly different behavior between left side and right hand side of peak strip. Presumably originated from original distribution and nothing to do with the recap clamp.

  17. Quantitative Estimate Averaged over strips ={14~18, 26~30} w/o recap ~90% X-talk charge is quenched w recap

  18. f position dependence f=center f=+3cm

  19. f position dependence Peak strip ~ 21 Peak strip ~ 19

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