SiW ECAL prototype: preparation for TB2017 #4

→ Europe/Paris
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Cacher

Participants

  • Présents:Adrian (AI), Vladik (VBa), Rémi (RC), Guillaume (GF), Roman (RP), Vincent (VBo), Stéphane (SC)
  • Remote:Jean-Yves (JYH), Taikan (TS)
  • Excusés: Jérôme (JN), Alice (AT), Julien (JB), Frédéric (FM)

Analysis

  • Single SLAB @ LLR

    Vladik & Adrian

    • Effect of ambiant light and with flash light seen
    • Set-up Config
      • 2 slabs tested
        • SLAB #15 (with cover)
        • SLAB #20 (no cover)
          • with and without black fabric
      • thr @ 225
      • Masking done "by hand"
        • a few channels
    • Run config
      • Spill Length = 170ms
      • Continuous Current
      • 1/2h runs
      • Note
        • Config was first incorrect (TB instead of BT) → ILC mode (lim @ 5 ms)
    • Results
      • 2 distributions:
        • Peak left of mips seen
          • larger for uncovered one
          • without black fabric
      • rate = 0.05 Hz/cm2
        • ~ 2× expectation
    • DQ

      Adrian

      • Data Corruption
        • Type 7
          • hit bits ≠ on low/high gains
          • 6 / 10^4
      • NHits>64 = 0
      • List fo Histograms
      • negative == adc=4
        • Channels 44–47, ASIC 1 & 4
        • SCA = 0 & >0
      • Spill# ≥ 30000
        • was only 2nd part of data
      • check of hist plots
  • Beam Test @ LAL
    • Set-up Config
      • 5 SLABs
        • IDs ?
    • Scan of Spill Length
      • Pbm if SL>2.85ms
    • Run Config 1
      • Spill Freq= 10 Hz
      • SL = 5ms
      • Results
        • Large noise peak seen at BCID = 2050
          • Amplitude ?
        • same in CC and PP mode
        • Why in BT set-up and not LLR Slabs
          • [ ] Test SLAB #15 in BT Set-up

            AI

          • [ ] Change BT Power Supply

            AI

          • [ ] Check FW version of SLAB #15

            JN

    • Run Config 2
      • SF = 10 Hz
      • SL = 2.5 ms
      • Data Corruption = 0
    • Run Config 3
      • SF = 40 Hz
      • SL = 2.5ms
      • Data Corruption = ??
    • Other checks
      • Injection of signal
        • Done for 1 SLAB (AI, JN)
          • Results ?
  • SLABs readiness
    • SLAB #21
      • needed a resoldering
        • done by JN
    • SLAB #?
      • 1 bad chip
    • SLAB #13
      • bulky capacitor
      • doesn't fit in det
        • On top of structure
        • How to integrate it ?
          • Measure

            GF

  • DAQ

    AI

    • FM will work at LAL Thrusrday & Friday
    • To Do's
      • Add monitoring of LV PS (V, I)
      • Prepare place for data
        • Polui07
        • Grid
      • Add e-log for
        • llsstagbench
        • llrchipbench
      • Install data export from pyrame → DQM
      • Integration of ECAL table
        • When ?
  • Installation

    RP, GF

    • Visit @ DESY
      • RP, GF
      • 16/05
      • Contact with Ralf Diener
        • Beware of magnet fields in BT24.1
          • → no DESY table
          • security distances
          • check for amagnetic support
      • Distances for set-up
      • Support for single slab in PC magnet
        • DESY2012 structure OK ?
    • Table
      • Mechanical test of ECAL table

        GF

  • Admin

    VBo

    • Docs
      • Wiki
        • Doodle link o be corrected
    • Doodle
      • to be completed
      • RP will ask Korean colleagues
    • TNA
      • Started
      • Asked for limitations of reimburshment
    • DESY
      • indico page open for regisration since last friday
  • Tests of ASIC's
    • Plans for Kyushu

      TS

      • Check the decouplings on the SK2a test-board
        • Noise measurements
          • ADC
          • S-curves
        • Signal Stability
      • Excell sheet with PS
        • Diffusion for discusion

    • Injections test @ LLR

      VB

      • Slides from Shriddha & Luc
        • inejction @ ≠ delay
        • Mainly OK
          • few pulses out of band
        • Successful injection of 15 pulses
          • for delay studies
  • Analysis
    • To be discussed at next meeting
    • Training session
  • AoB
    • Meeting next week
      • at LAL
      • Day & Time ?
  • Acronyms
    • SF = Spill Frequency
    • SL = Spill Length
    • Thr = Threshold
    • SCA = Shift Capacitor Array
    • RC = Run Config
    • BCID = Bunch Crossing ID [0-4095]
    • CC = Continuous Current
    • PP = Power Pulsed
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