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Lecce status

This update provides information on the procurement of new parts for the wiring robot in Lecce, including the ordering process, delivery details, and the progress of the Mu2e prototype. It also mentions the ongoing evaluations for the front-end cabling and the system design.

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Lecce status

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  1. Lecce status Marco Panareo Lecce – 27/06/2013

  2. Wiring robot parts procurements • Recycling parts from Mu2e prototype wiring robot: rotating axis, translation axis, torquemeter, e.m. friction, e.m. brake, digital microscope, monitoring system →done • New parts: winding drum →ordered • Wire trays transport system →design in progress • New mechanical supports →to be designed and machined

  3. Upgraded wiring robot Torque meter microscope Wire spool nose Torque meter Moving cart

  4. Wires • Order placed: • 6000m Al-Ag plated Ø 40µm (0.0016”) • 1500m Al-Ag plated Ø 50µm (0.0020”) • 1500m W-Au plated Ø 20µm (0.008”) • Delivery: End of September (unfortunately partial delivery not allowed)

  5. Mu2e prototype • Wiring: →completed • Front-end and HV cards supports: →completed • Gas envelope box: →in progress

  6. FE LE/BIMP • 2 stage gain FE • Distrete – Integrated • Full Integrated • Used on all the prototypes (Pi, Le, Rm) • L’impiego di un ulteriore stadio di guadagno è in fase di valutazione

  7. Mu2e prototype FrontEnd Cabling Sense wires alternatively : HRS FX2 Series Twisted flat cable 68 contacts (signals/power) power Signals/gnd Wire signals/power distribution

  8. Options for final DC FE • Differenti soluzioni per l’implementazione del FE sulla camera finale sono sotto studio • Kapton vs. FR4 substrate • Flat output cable vs. HDMI output cable • FE/HV card for both sides reading • Booster location • La decisione sulla configurazione finale avverrà entro la fine dell’anno anche sulla base delle valutazioni fatte attraverso il prototipo FL

  9. side B side A top view 165 240 Full length prototype • System design: →in progress • Wire board anchoring system: →conceptual design done • Wire boards: →to be designed • Spacers: →to be designed

  10. Drift velocity, diffusion and ionization yield measurements • Uniform E field (>1.2kV/cm) between plates • N2 laser generate a single electron between plates • Arrival times give precisedetermination of vdrift • Variance gives longitudinal diffusion • After that: Lateral diffusion, primary ionization • Gas leakage tests and HV test are in progress • Full working joulmeter optics target N2 laser Fast trigger PMT xy table control

  11. Impegnato 2013 • Meccanica 34.7k • Fili per prototipo 17.4k • Motore passo passo 2.5k • Tubo centrifugato 1.8k • Carropattino 2.9k • Tavolo per assemblaggio 2.0k • Torsiometro, frizione, freno 8.1k • Elettronica 3.4k • Pcb prototipi 1.6k • Componenti/cavi 1.8k

  12. Richieste 2013 - Wires • 40 μm Al wire: 2.66 US$/m • (1920 cells × 4 wires/cell) × 2 m/wire + 30% = 20,000 m or 60 spools × 333 m or 53,150 US$ • 50 μm Al wire: 3.50 US$/m • (1920 cells × 1 wire/cell+ 768 guard wires) × 2 m/wire + 30% = 7,000 m or 24 spools × 300 m or 25,200 US$ • 20 μm W wire: 0.88 US$/m • 1920 wires × 2 m/wire + 30% = 5,000 m or 17 spools × 300 m or 4,500 US$ • Total: 82,800 US$ × 0.8 €/US$ × 1.21 (IVA) + custom clearance and transportation (several partial deliveries) = 84 K€

  13. The End

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