Proton Calorimetry/Meetings/2017/11/22

Minutes for UCL Proton Calorimetry Meeting, 15th November 2017 (D17, Physics & Astronomy, UCL)

Present

Simon Jolly, Ruben Saakyan, Anastasia Basharina-Freshville, Jordan Silverman, Dan Walker

RS:

• WaveCatcher has arrived!
  • ABF will have first look then pass on to DW.
• Hamamatsu flat panel sensor needs to be ordered:
  • ABF will chase up.

ABF:

• Comparing Matthieu's simulated spectrum to results for Clatterbridge single module:
  • Spectrum looks closer than before to measured spectrum.
  • Landau fit working for peak but long tail not well described.
  • RS suggests Network Performance Analysis!
  • Will work with Laurent on improving fitting of data.
• Testing Hamamatsu boosted PMT base:
  • Erratic behaviour disappears when boosting 6th dynode but peak still drops with increasing frequency.

JS:

• Looking into CAD modelling in Geant4:
  • Issues with each option for CAD import!
  • Will email SJ with details of CAD import issues.
• Haven't pursued PRaVDA VM.
• Will look at ROOT fitting with details from ABF.
• Will start to run Clatterbridge simulations from Matthieu.

DW:

• Working to fit waveform files in ROOT.
• Have simplified filtering: will add in baseline subtraction for each waveform.
• ABF suggests using alternative method than pulse fitting to distinguish double pulses: will be much faster!