Proton Calorimetry/Meetings/2017/02/01

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

Present

Simon Jolly, Laurent Kelleter, Andreas Christou, Adam Knoetze, Matthieu Hentz

AC:

• Finished Java code to load scope binary files: readme written alongside.
• ROOT Spectrum sigma calculated from first pulse in file: then specify number of sigma to look for other pulses.
• Looking into background of fitting.

AK:

• First trial run with LED pulser last Thursday:
  • LED driven by cards in crate.
  • Data acquisition with Caen digitiser.
• Finally resolved all issues with scaling waveforms on Caen detector emulator.
• Debugged issues with conversion scripts.
• Will speak to ABF about next steps with pulser and detector emulator.

MH:

• Putting together PDFs of Clatterbridge beamline layout.
  • Finished overall layout and individual dose monitors.
  • First beampipe section (with stopper) and dose monitor box still to do.
• Tracking emittance evolution along beamline.

LK:

• Simulating variation in beam position across scintillator, along with varying diode position.
• Tested affect of 9 different beam positions with 3 different diode positions along one edge.
• Maximum variation of 10% between beam positions: shouldn't be significant enough to degrade energy resolution.
• Also fixed energy deposition bug in Geant4.
• Will start looking at analytical formula for quenched Bragg peak...