Proton Calorimetry/Meetings/2025/07/29

From PBTWiki
Jump to navigation Jump to search

Minutes for UCL Proton Beam Therapy Group Meetings, 29th July

Present

Joe Bateman, Sonia Escribano, Raffaella Radogna (via teams), Harry Barnett, Simon Jolly

Raffaella Radogna

  • Need to verify FLASH condition and scanning with TIFPA ahead of beam time
  • First week of September assembling new fibre prototype in Bari - second week at UCL (?) to try and fit in QuARC enclosure
  • DAQ laptop needed for NI software for fibre acquisition (dual booted laptop needed) - will need network switch close by. Ox - so more short cables needed and a power supply with usb socket needed to be sat near the box
  • Three plug sockets (1 laptop , 1 fpga and 1 national instruments needed for fibres).
  • Currently 2 power supplies needed for QuARC (or 1 if Pete Hastings makes power distribution in time)
  • Away first 2 weeks of august.

Sonia Escribano

  • UCLH QuARC analysis
    • Analysis of side b of quarc detector
    • Looked at beam alignment - Prague issue not present
    • Good energy measurement of pristine Bragg peaks - better agreement as moving towards lower energies (i.e. < 1 MeV for 225 MeV)
    • Strange fitting for b side 150 meV
    • Between 95 and 85 mev faulty pd means QB curve is strange shape
    • Big shift at 80 mev between reconstructed and reference for some reason even though the pd isnt causing an issue
    • Add a fit to the sum of the photodiodes from each side
    • First few photodiodes of first board of side b seems to be very high but other photodiodes are in close agreement on both sides
    • Shoot through back on module one producing strange shape
  • Starting to test new rev f Oxford boards
    • 3rd board very noisy
    • All boards together and two that are separate
    • 6th board does not acquire measurements
    • P2b05 v noisy
    • P2b06 does not acquire measurements
    • 8 boards work and 4 don’t - successfully daisy chained 8 boards together