Proton Calorimetry/Meetings/2017/02/08

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Minutes for UCL Proton Calorimetry Meeting, 25th January 2017 (D17, Physics & Astronomy, UCL)

Present

Simon Jolly, Ruben Saakyan, Anastasia Basharina-Freshville, Laurent Kelleter, Adam Knoetze, Matthieu Hentz

AK:

  • Working with pulser and LED.
  • Running detector emulator into digitiser produces exact replication of spectra as expected.
  • Driving LED with detector emulator more problematic: digitiser won't trigger properly on PMT output.
  • Driving LED with regular pulses gives similar response to experimental measurements:
    • For Hamamatsu base, mean ADC position (gain) drops with frequency then stabilises around 100kHz;
    • For UCL base, ADC mean drops quickly then rises from ~30kHz up to ~450kHz.
  • Will try more measurements at lower and higher frequencies.

MH:

  • PDFs of layout sent to Clatterbridge and Carsten Welsch: no response as yet...
  • Measuring the emittance evolution down the Clatterbridge beamline:
    • Original element written by ESA: doesn't work...
    • Will write own custom element for specifying input emittance.

LK:

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