Proton Calorimetry/Meetings/2021/04/21

Minutes for UCL Proton Calorimetry Meetings, 21st April

Present

Simon Jolly, Raffaella Radogna, Saad Shaikh

Saad Shaikh

• Package arrived safely at CosyLab and Marko is able to run DAQ with loaned Nexys Video and Raspberry Pi.
• Conducted beam test at UCLH, experimental notes found here.
• Started analysis on UCLH data, discussed first findings in this presentation.
  • Will add frame rate and averaging rate as seperate arguments for averaged replay script.
  • Will add measurement number and number of measurements to view as arguments for stepped replay script.
  • Need to tweak shoot-through averaging to take into account absolute light difference in shoot-throughs.
  • Need to reduce effects of pulsing by taking average of each acquisition to divide photodiode values with. This should reduce standard deviation artificially.
  • Need to consolidate UCLH reference curves for comparison.
• Will meet Simon tomorrow at UCL to:
  • Measure full scintillator stack thickness.
  • Note down scintillator sheet order.
  • Measure photodiode cross-talk using LED (without dismantling setup).
  • Dark measurements at different FSR in lab/office (with CMOS sensor running?).
  • Potentially discuss scintillator reflection with Derek.