Proton Calorimetry/Meetings/2025/03/04

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Minutes for UCL Proton Beam Therapy Group Meetings, 4th March

Present

Joe Bateman, Sonia Escribano, Matt Warren, Simon Jolly, Raffaella Radogna (via Teams)


Matt Warren

  • zMod boards don’t work
  • Connected two supplies that weren’t supposed to be connected
  • Zero ohm resistor connects power supply to ground
  • Shorting between 1.8V and 3V supplies
  • Still shorting even when pulling all components off the board
  • Only 4 places where power plane needed
  • Going to try and separate connection between top layer and via
  • And isolate 4 connections and wire directly to input

Raffaella Radogna

  • Submitted beam time request for Trento
  • Started assembling fibre frame

Joe Bateman

  • Further analysis of the 5 Gy SOBP Simulations with varying the input parameters between the QuADProBe and DICOM
  • Gamma analysis of all QuADProBe compared to all DICOM distributions
  • Have data from Tony for 5x5 box fields but need to figure out how to process it with script
  • Joe, Simon, Sonia and Raffy met with Blake Leverington from Heidelberg Uni physics department to discuss scintillating fibre monitor - Blake is willing to forward details of DAQ system electronics


Simon Jolly

  • consider for beam tests: off centre shoot through calibrations

Sonia Escribano

  • Raspberry pi’s all in argon one v3 cases
  • All have been tested with nexys board and usb connection to an old revc board and all work
  • Setting up on UCL network - to have static or dynamic IP address
  • Put old raspberry pi 4 stuff in d26
  • Box field and SOBP analysis
    • Run 53 3x3 box field
    • Highest energy is partially cut
  • Run 59 and run 60 5x5 box fields data not so great, on lower energies photodiode 33 skews fits, however if manually scale down fits improve
  • New calibration method
    • live display averaged at 25 hz
  • Calibrate live - everything in one, separate into two files and fit each side individually
  • Calibrating post - same but creating file
  • Fitting of each calibrated file done individually
  • Note in header of calibrated and fitted data which side it is for
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