Proton Calorimetry/Meetings/2017/03/08

From PBTWiki
Jump to navigation Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Minutes for UCL Proton Calorimetry Meeting, 8th March 2017 (D17, Physics & Astronomy, UCL)

Present

Simon Jolly, Ruben Saakyan, Anastasia Basharina-Freshville, Laurent Kelleter, Adam Knoetze, Matthieu Hentz, Andreas Christou, Jordan Silverman

AC:

  • Working on waveform fitting in ROOT:
    • Gaussian part of the fit works.
    • Trying to fit falling edge of pulse using single exponential.
    • Will try implementing double exponential.
  • Can already filter out pulses with more than one peak:
    • Will reconstruct ADC spectrum from filtered waveforms.
    • Will vary integration window for pulse (50, 100, 150ns used in experiment).

MH:

  • Looking at emittance and beam profile evolution along Clatterbridge beamline.
  • Ignoring protons that fall outside the measurement region in simulations.
  • Need to check initial parameters and beam density distributions: will plot intensity distributions to make it clearer.
  • Updated geometry based on information from Andrzej.

AK:

ABF:

  • Started looking at data from MedAustron experimental runs.
  • 0.7% FWHM energy resolution at 252MeV!
  • Will continue analysing results: can distribute to collaborators once complete.

LK:

  • Still looking at photon depth curve in simulations.
  • Improved y errors: includes fluctuation in energy deposition.
  • Fit looks good but not perfect around Bragg peak.
  • Errors on fitted energy underestimated but final range close to reality.
  • SJ suggests contacting Roger Barlow (Huddersfield) to discuss fit accuracy.